Rain customer support

I received my Sim card on the 9th of July and I immediately took advantage of their 7 unlimited data days. That ended on the 15th. On the 17th at around 11am I received an email saying that I'd used 80% of my spend limit and then at around 14:00 I received another email saying I'd used 100% of my spend limit. This came as a shock as I was under the impression that I was now on the 19hour unlimited plan. I got onto their chat-line and Jabulile said there system doesn't recognize the 7 days and all I needed to do was reset my mifi router. I did and that didn't help. I then sent an email and I got a reference number and a promise that somebody will call but no one did. Later on before closing time I went onto their chat-line again and a Themba said my Sim card wasn't activated properly. The following day I went onto the chat-line to see if there was any progress on my issue. Jabulile then sent me a screen shot of her computer screen and which showed my three logged enquiries. She then said maybe around 14:00 they would have fixed the problem. 14:00 came and went and nothing. To this day (24 July) no one has gotten in touch. It seems no one is interested in helping me. I'm now having to wait until the 1st of August in order to cancel my Sim. Great deal but I guess with cheap deals come cheap services.