Hello @Ganthono ,
Welcome to the community,
If you click on the link here, you can check and even report it to EE, we cannot tell you:
https://coverage.ee.co.uk/coverage/ee
To contact EE customer service dial 150 from your mobile phone or ring customer service for free using Skype or another phone: +44 800 079 8586 or +44 800 956 6000.
