failing Accountants and bookkeepers at Edcon

I am currently not getting any joy with the Edcon services (accounts and customer services). on the 11th of April I went into store to make a payment of R850, I used my Capitec bank account to make that payment at the Jet on Bree street in Johannesburg. then on the 26th of April went and made another payment of R850 at the Jet on Bree street.

I was at the Edgars store on the 27th April and was told my account is in arrears, so on the Monday 29/04/2019 I go into the store to query that a payment is outstanding however all payment where made. I was asked for the receipt which I do not have and thus provided the bank statement which clearly states payment done, they have not provided a way forward till this day and I do not understand why I should be inconvenienced by instore procedures and running's. if a store is offline (it would not be the first time I make a payment on Edcons offline systems - so what makes it different this time around?) then why should I be held liable where as payment was taken and it also went out off my account. I even called accounts department because I was now getting smses advising of none payment, spoke to Andiswa and she requested Documentation from me which I submitted and then no feedback. Called again today and spoke to another Guy who told me account is in arrears. Its unfair to be charged late charges now and payment have been made. if I don't get any joy I will be referring this matter further to Ombudsman