GE Money Bank/ Carecredit GE Money Bank Stole my Money Orlando Florida

Is there anything I can do about GE Money Bank I purchased a pair of eyeglasses on a Carecredit credit card through my Dentist which covered Dental and Vision. I mailed a money order for the payment in full on 4/6/9 GE Money Bank cashed it on 4/15/9 and never posted it too my account I have traced the money order and I have mailed and faxed several copies to this company in the meantime that keep charging me late fee's for the monthly payment I closed my account back in April when the claimed they never received it and their collections dept is harrasing me to make a payment, when I paid it in full on 4/6/9. I've spoken to several different supervisors such as Kristin, Kevin and Brock none helped me gave me a fax number and I don't hear back.

Mxludagirl
denver, Colorado
U.S.A.