Afrox's staff not doing their job!

I received a bill for a rental amount on my account for a Partygas cylinder I returned. I sent the query to Afrox where I did not had a response. A few weeks later, I got a dunning letter requesting payment, where I responded with a proof of payment and the same query again which was also ignored and forgotten. About two weeks later I went to the Afrox Agent in Tzaneen to collect a new cylinder and to be billed to my account, then the agent said they cannot book on my acc as the account is blocked. I tried to phone the customer service which did not help at all. I had to immediately pay double my rates to the agent before I could get the cylinder. I decided to take it and sort it out with Afrox on the Monday. I e-mail all the e-mails addresses I could find and got a phone call early this morning from a lady who also could not assist in sorting our my query. I requested the accounts lady to phone me and explain why it took 2 weeks to unblock my account. The Accounts lady was very rude and did not give me a chance to speak and constantly telling me that I should pay my accounts. There are so my other issues to mention, but nobody seems to care. Afrox! Worst service I ever experienced