@Bev77 , have you not paid your contract? If you have paid it, then what makes you think your account has been suspended?
If you have just paid it off, then you need to give it time to be cleared before you can use your SIM card again.
If none of these have occurred, then I would suggest checking here, where you can register, report and receive updates:
https://ee.co.uk/help/mobile-coverage-checker
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.
