UNHAPPY, FRUSTRATED CLEINT

On the 27th of October I returned and made a purchase at Jet in Vereeniging. The system was offline and the lady told me that the return and the purchase will go through was the system is back on track. On the 23/11 I made a payment and also purchase. On the 2nd of Dec I wanted to make a purchase at Edgars Vaal Mall and they told me I don't have any credit available which came as a shock to me. I was so embarrassed standing there and people telling me that. I ended up doing a cash payment. I went to queries and they just told me I over spend and that is not a clear explanation at all. On the 11/12 I receive my statement which shows 27/11 I made 2 purchases for R435.95 which is impossible, there is also no record of the returns. I called to query this and the lady could not give me positive feedback, she made me hold the line for 15 min. On top of this I receive an sms that I made a short payment. I am very frustrated, I need this to be sorted asap