Poor customer service for a whole year

This will be the second review, Exactly a year ago today I paid up my bears Inspire account and sent proof of payment and paid up letter to lewis stores to update the credit bureau. On Experian it is showing in arrears and this matter is not being resolved. I have sent many emails and made many calls for a whole year but still no resolution. They send me an email saying transunion was updated but Experian hasnt been updated. A WHOLE YEAR.