Disappointed

I ordered quarter chicken paela yesterday on the 31/08/2023 around 10:40.I collected it around 13:20.I was assisted by Gladys who took my card and tapped on the machine.She gave me my food and card back.I did not check the receipt or the transaction because of the level of trust I have for the shop and because I have been supporting the shop for a long time and didn't think I would experience any kind of problem that I experienced.I got to the office ate and enjoyed my lunch.Later on that's when I realized an amount of R79 was deducted from the account instead of R39 by then I had already lost the receipt.I called again and I was requested to report back to the shop and they will check the duplicate and refund me money.I went back and they said the need a statement and it can take 24 to 48 hours for a refund. I lodged a complaint and I was given the ticket number 6841.I followed up on that and spoke to Nosi who said I must get a statement for audit purposes and take it to the shop and they will refund me.I tried to get the statement of yesterday and I was informed I will be charged R40.Now is fair to go through that when the mistake is not from my side.im very disappointed with the kind of service I got.I have been a loyal and supporting customer of pedro.Im very disappointed and don't see myself supporting it again.I just want to be refunded my money and I'll never bother you again.