Choose the communication method
which serves you best.

Phone Support
24 hours/ day, 7 days/ week

For Residential customers call:

13888 from domestic
From abroad +306971013888

For Business customers call:

13818 from domestic
From abroad +306971013818

Contact
form

Through the contact form you can submit the issue that concerns you and we will take care of your immediate service.

Video Call
in sign language

Fill out the form and you can chat in sign language with one of our representatives.

Hours: Monday to Friday, 09:00-21:00.

MyCOSMOTE chat

Log in to My COSMOTE and start a chat with COSMOTE TELEKOM Personal Assistant in "Support" category.

Network
shops

Find a store near you

Postal
address

Customer Service Department
99 Kifisias St., 151 24 Maroussi

Useful videos

Support portal

Frequent questions

MyCOSMOTE

You can also search
to find what you need yourself!

We are by your side to help you
to find answers to your questions.

Through the portal Support, you can choose the thematic section that interests you, so that you can immediately see all the relevant information.

Watch the videos and:

If you are not already a registered user on My COSMOTE, register now to manage your mobile, landline & COSMOTE TV quickly and easily.
Download now the updated for free COSMOTE APP and see how you can do everything easily and safely from your mobile phone.