Unprofessional and ********* service from RCS

I contacted RCS 4 days ago for a limit increase and it was approved by a consultant for R3000. They simply requested payslip to confirm income given to them on the phone. This was mailed to them the same day. Yesterday they requested the payslip again and this morning again. After the confirmation over the phone that the limit increase was approved, I now get a message that the increase has been declined, with no reason. This is utterly unprofessional and *********. I am appalled by this service. This is no way to treat a client.