Google Play is a Google application for mobile phones & tablets with Android operating system , through which you can download apps & games , read ebooks  &  magazines , watch movies  &  TV  Shows and listen to music via Google Play Music App.  Applications and content in the Google Play Store are not provided by COSMOTE. You can find more information about Google Play at Google_Play_Help

Customers eligible for purchasing apps and content from Google Play, by charging their
bill1 , are:

• Subscribers of COSMOTE Mobile Plan & Cost Control plans and  
• Subscribers of COSMOTE Business Mobile & COSMOTE Business Mobile Cost

There is an option of deactivation and activation (barring and lifting of barring). For this
purpose:

•  Call 13888 Residential Customer Service Department Fixed & Mobile OTE Group
•  Call 13818 Business Customer Service Department Fixed & Mobile OTE Group
•  Or send us your request electronically. 

There are 3 different kinds of purchases:

• app & games purchase (app purchase) 
• in app purchase, e.g. I download an application and while I am using it, I make a purchase e.g. for extra credits
• subscriptions (monthly or annual) for access to content 

If you are eligible for making purchases Google Play by charging your bill, at first you will
need to activate the service. A condition for this activation is to already have a Gmail
account, to use a device with COSMOTE SIM card and have the ability to access data via
COSMOTE or Wi-Fi.

For the first activation follow these simple steps:

•  Select the Google Play app from your mobile phone or Tablet and then the menu on the top left side of your screen.
• Select “Account” on the menu and then “Payment method”
•  Select “Use COSMOTE bill”
•  Fill in the information as requested, and then click “Save”

In case you already have another payment method activated (e.g. credit card), follow the
next steps:

•  At the menu “Account” select “Payment method”
• Select the icon + on top right
• Select “Use COSMOTE bill”
•  Fill in the information that is requested and click “Save” 

You can remove your bill as a payment method in the following way:

•  Main menu of Play Store
•  Select “My account”
• “Payment method”
• “Additional settings of payment”
• Cancel bill as a payment method. You can find more information about how to add, cancel, edit or change the payment method on Google Play, at Google Play Help:

At the category “Purchases – Charges of Third Parties (VAT included)”.

You can cancel your purchase within 2 hours since the purchase via the Google Play app.
After the 2 hours you will have to contact the app developer.

The contact information of the developers is displayed on the detailed page of apps or
games on Google Play. For more instructions:
https://support.google.com/googleplay/answer/113418

If you require further support, you can send an email to the support group of Google Play,
in order to ask for a refund (provided you are the owner of the Gmail account used):
a. For apps & games purchases, in - apps and subscriptions:
https://support.google.com/googleplay/contact/play_request_refund_apps?ctx=about_r
efunds_on_google_play&rd=1
b. For Google Play movies and TV Shows:
https://support.google.com/googleplay/contact/play_request_refund_movies?ctx=about
_refunds_on_google_play&rd=1
c. For Google Play music:
https://support.google.com/googleplay/contact/play_request_refund_music?ctx=about
_ refunds_on_google_play&rd=1
d. For Google Play books:
https://support.google.com/googleplay/contact/play_request_refund_books?ctx=about
_ refunds_on_google_play&rd=1
e. For Google Play magazines:
https://support.google.com/googleplay/contact/play_request_refund_newsstand?ctx=ab
out_refunds_on_google_play&rd=1

For in app purchases and in app subscriptions the option of 2 hours refund is not available
and you must contact directly the developer or Google.

Also, make sure that you have cancelled the subscription that you want to terminate,
since refunds are performed separately from cancelling of the subscription.

You can find more information on the return and refund policy on Google Play, at Google Play Help:
https://support.google.com/googleplay/answer/2479637?hl=el&ref_topic=3364671

Once Google approves the refund, and provided that the initial purchase has been made
via your COSMOTE bill, your refund will appear on your bill as credit (negative amount).

In case you want to contact Google on telephone for payment issues, you must request
them to call you back by following the next steps:

•  Visit the website https://support.google.com/payments?hl=en#topic=6209953
•  Select ‘English’ as a Language (at the bottom part of your screen)
• Select ‘Contact Us’ on top right
•   Select ‘Sign in’ in order to fill in your Gmail information
•  ‘Request a call’ or ‘chat with Google’
• Fill in your information and a Google representative will directly contact you 

Once you make sure that the charge is from Google Play and that it was not made by
someone you know, you can report this to Google, via the Google Play Help:

https://support.google.com/googleplay/answer/2851610?hl=en-GB&ref_topic=3364671

Also, you can submit a claim to the support group of Google Play within 120 days from
the transaction date, by selecting the Direct Carrier Billing option

https://support.google.com/payments/contact/unrecognized_charge?hl=en

Note that Google receives requests and claims only by the Gmail account owner.

Advice: In order to avoid unauthorized charges, learn how to use the protection of access
code on your device. 

Yes you can, by activating the ID control. The ID control means that some information,
such as an access code, must be registered on your device, in order to make a purchase.
You can find the relevant instructions for the activation of the ID control at Google Play
Help:

https://support.google.com/googleplay/answer/1626831?hl=en-GB&ref_topic=3364260

There is. You can activate parental control in order to limit the content that someone can
download or purchase from Google Play on your device. You can find the relevant
information at Google Play Help:

https://support.google.com/googleplay/answer/1075738?hl=en-GB&ref_topic=3364261 

You can find instructions and advice on what you can do in order to be protected from
harmful applications at Google Play Help:

https://support.google.com/googleplay/answer/2812853?hl=en-GB&ref_topic=3364261

You can do this via Google Payments at the beginning of each calendar month for
purchases that you made during the previous month. Learn how. 

If you see this message then you are not eligible for this service.

If you see this message, then maybe the barring of service is activated. To ask for a lifting
of barring see here.