Very disappointed!

RCS is giving me such a hassle and I am really disappointed! On the 5th of February I made a payment through their RCS App, during the transaction, the app failed and it said "Payment Unsuccessful & Payment Failed", however, the payment was deducted from my banking account. I sent RCS the proof of payment from my banking app which says "Pending", they advised to give it until the following week. On Monday I called and they said no payment has yet been received. I called my bank, and they requested a simple email from RCS stating they have not received the payment so they can release the pending funds back into my account. One of the bank consultants made a call to RCS on my bahand spoke to one of RCS consultants who agreed over the phone to send me the email within 24-48 hours. I waited the time frame, but nothing came. I called multiple times in the week, was given many different stories. I eventually called the Collections Department because apart from the issue faced, the previous consultants kept telling me they have informed the collections Department and another department, however, there was nothing proving such, also, I keep getting billed for every SMS reminder, every call, and every email reminding me of my unpaid account, yet all we are waiting for is a simple email stating the funds have not been received on the 5th. Also, my payment due on the 1st if January was a little late due to returning to work on the 14th, my payment at the time was made on the 16th, yet they continously called, sms, and emailed me even after that payment was made. I am really not happy with the service I am currently receiving from RCS as their consultants are giving too many different stories, agreeing to something but then not delivering on that agreement. All I need is a simple email stating no funds were received on the 5th of February so that the bank can remove the hold they have on the funds so that my account can be paid!