Shocking Service

I ordered an incorrect product from MWeb and upon querying their sales process, they agreed to collect it from me and give me a full refund by way of a credit. Their courier picked up the product after a few days. After that I got various phone calls from people asking when they could pick up the product - I explained that they had already picked it up every time. Then I just heard nothing for weeks and no credit came through on my account. I sent an email to their complaints email id and heard nothing for a week after which I followed up three times. Then I tried to log an online query, but I was not allowed to so since I already followed up on an email three times and they limit the number of interactions. So they ignore me and when I follow up to no avail I get disqualified from logging a further query. Today I phoned the accounting division and after holding on for a long time and verifying lots of information (R 43's worth of call time), a computerised voice informed me that "due to unforeseen circumstances" they could not attend to my call and that I had to try again some time in the future. So now I have no way of doing anything further since every possible way of making contact is blocked - as a result of them ignoring me and my repeated follow ups which were also ignored. This is worse than pathetic - in fact it is beyond crazy!