Settlement of account

My account was handed over to MBD attorney and I settle the account last year Nov, to date on finchoice it stil reflect that I owe them I hv email them my paid up letter from MBD and on MBD side the account is closed. I hv been calling finchoice for assistance with no luck. I spoke to a consultant last week named Bomukazi she said she wil get a manager to assist as she is working from home, I am stil waiting for the call. Then it was a consultant by the name of Joanne, I am stil waiting for feedback. I hv been calling since the beginning of Jan to get this resolved and I am being sent from pillar to post. Pls I need assistance it's been three months that I settled my account with MBD but on finchoice it stil reflects that I owe them.