Pathetic service at MBD

I've had a Very bad experience with them. I had an account at RCS a few years back, and due to financial difficulties couldn't pay and was handed over to MBD. I continued paying my account as arranged with them. On the 27th of March I noticed that my payment done in February was not reflecting on my statement. When following up, I also requested my correct settlement amount that includes my February payment. On their request I sent through my proof of payment to their queries email address as well as one of their employees directly on recommendation. I followed up again from the 4th of April every day, and even spoke with a manager who claimed that it is RCS that didn't pay my February payment over to them, and that the delay is with RCS. I then continued to phone RCS and they linked my call directly with MDB who said that the wil send me a settlement letter in 10 min. This was in the morning of the 9th. I'm still waiting . To make the agrivation even worst, they decided to increase my statement amount. They are absolutely pathetic !,,,,,!!!!,!,!,!,!,!