Rcs payment allocation not done !!!!!!! - what is going on!!

I am beyond frustrated ! I received a sms this morning from rcs saying my account was in arrears ! I paid instore at cresta coricraft on the 2nd July - immediately called through and confirmed payment was not allocated !!! I have emailed through pop and am told 5-7 working days ! I expect this matter to be resolved today - you have had over 12 days to allocate the payment . I want this corrected today with an updated statement showing no arrears and if any late fees are charged I expect them to be removed and this better not show in anyway on my credit score ! The instalment was made in full on time ! Please can a manager call me!