RCS impossible to get anything sorted

I have a pick n pay Store account,

According to the agents calling me I have not made payment for the past 2 months or it's not reflecting. when trying to explain to them I did make payment and they need to check what is wrong with the system they simply drop my call.

Tried phoning them back, call prompt options do not work half the time and when the do and you go through the whole process the call just ends.