AFROX keep passing the back buck instead of helping !

On and around 10th November 2025 I went to Afrox Germiston to get some Nitrogen. I was then advised I had to open a cod account in order to purchase it. The lady Kefentse who helped me and filled in the form at NO time infromed me that there was any additional amount to pay other than the amount I had already paid if I returned it within a week which I did. A month later I received an invoice for R558 for 'rental' for which I had no idea of. I then retuned to the branch and they then informed me that it was no problem and that I should contact customer care (they even gave me the number) for them to resolve. I then made contact with a Pello Marelle who said she will follow up and get a credit passed. Two months later and after nagging her she said only the Branch manager can do this. I then retuned to the branch only to be advised that I must pay it and they wont do anything about it. This is appaling servce. I have been using Afrox Germiston for many years buying LPG and this is how you get treated !