POOR AND TERRIBLE SERVICE FROM AFROX ROODEPOORT AND THEIR E-SHOP

My Husband and I bought 3 Full 19kg Gas Cylinders a month ago on the 29th of April and we paid online. When we went to collect the following day(the 30th) at the Roodepoort office , the Cashiers told us that there was a mistake with the sale. Though we paid with Card, it appears as Credit and they cannot give us the Cylinders. It has been a month already and no one is resolving this issue. The cashiers from the store keep on calling the "E-Shop" Call Centre and no one is picking up. We have asked for a refund 2 weeks ago and it has'nt been processed. Our business has been affected with this, I am using 9kg cylinder on big gas stoves and it keeps finishing sooner and I have to keep refilling. The entire service and attitude I have received during this has been TERRIBLE.