FNBCARDCORP/Business Credit card services is Terrible. Would never recommend to anyone.

Received the worst service in my entire life from FNBCARDCORP/Business Credit card Division. Cancelled an online transaction due to error on the 11th Of April 2018 less than 10 minutes after transaction was done. I notified FNB immediately as well as the merchant. The merchant confirmed as well as FNB. Few days later R10,703.39 went of my credit card. I contacted FNB, the ******** consultant rep**** 20th April by saying the transaction has not been bank and does not reflect in my account. I have sent a copy of my statement as well as dispute note till date and issue not resolved. I paid a higher interest rate because of the incompetence of the consultant, I spoke to Mbali on the 9th of May 2018 and she advised she would escalate and return my call the next day and till date no feedback from her or any other staffs. This is the kind of services you get from a bank that promises better services to customers but all lies. Highly disappointed that i have sent series of email with no response, spent so much money in making several calls and no results yielded. I spoke to Dineo today and asked for emails of superiors to assist with dealing with this issue but was told it will be dealt with internally. Does it take a year to resolve a petty issue as such?