Edgars no credit update

I paid my account on the 30/11/19 i paid R450 at the edgars vaal mall branch code 0068 at 14h39 cashier name sarah mogapi the slip states i have R735.07 actual credit available on sunday 01/12/19 i went to jet vaal mall branch code 7247 wanted to make a purchuse they said i have to pay in because i only have R282.31 actual credit available a day after i paid my account they phoned help desk they said there is a system error it will be fixes by the next day.today i went back 2/12/19 and the problem os still not solved i want to know what is wrong and where my credit and payment went

Jonathan veldman 940****024080 Account ***

I want to know why my credit did not update and why do i send this exact email to the edgars accounts and i get no reply