Dissatisfied client

As RCS tok over I have had many phonecalls with regards to payment of my account yet I already have a statement reflecting my 2 payments [14th April and May] already yet I have had phone calls 3rd one this morning asking me when am I going to pay and that edgars stores are open for payment. Surely their systems need to tally as it is very frustrating to get numerous calls at work {I am a Healthcare worker} Might I add I have already had issues when I opened my Makro account also run by RCS only to be resolved once I reviewed on hellopeter