Account and Phone Number Disabled

Hello,

I initially set up my account/sim card on a pay as you go plan. My account and phone number are now inactive and I would really appreciate some help activating them again. In my account I am unable to add or view payment methods, any account details, or plans. Each tab is either blank or displays 'Sorry, you are not authorized to access this information.'. I'm very lost, I have tried for weeks to update my payment method but the website does not accept any of my bank cards or says there was an error try again later. I have tried calling but the ai cant help as the account and number are currently inactive.

 Any help would be greatly appreciated !