Rcs credit provider

Hi , so i am dealing already for 2 months going in for my 3rd month with rcs , i emailed them a couple of times already not 1 response , made several phone calls was put threw to different consultants assuring me the account will be closed yet i received 3 statements from them that i am in arrears etc.... but i paid up my loan in full with an agreement that with last payment the account to close because it was a 1s off loan . I guess not everyone does there job properly but affect other peoples credit status out there . Very poor service over all via phone & email