failure to update payment

I paid my account on the 29th of April and sent the proof of payment on the 3rd May 7th and 12th. i called to confirm receipt on the 29th, 3rd May, 7th and 12th and was advised that payment would be updated.it didnt happen. now this is showing badly on ITC and yet i paid. i call and get references for calls but nothing is being done. useless service.