Just call. Worked for me. Pity about the campaign. This account runs like a dog.
I had the same problem. It eventually went through. They never responded though, so I ended up phoning them. I'd suggest you go that route.
Thanks guys. Got a PM with their contact details shortyly afterwards - thanks for that.The contact land line number is 011 791 3086
It seems I wasn't the only one hard capped early. These guys are a useless, please stay away from them.
I hope we don't get capped again
By the way, those who chose the monthly plan, there is a 30 day cancellation policy. If you plan on using this service all the way till december, please cancel in November otherwise you gonna get a nice hefty January bill.