Afrihosts bad support

I'm not receiving notifications of my data reaching a certain percentage of depletion, my wife works from home sometimes and needs internet for her IP phone for the office. For the past few months now I've not received a single notification warning me that my monthly cap is running low, everytime I correspond with support, they tell me that it's been sorted and I will receive notifications the next time, only to find out that I hadn't received any notifications once I cannot connect to the internet anymore and see that my cap has run out. Excuses, excuses, promises, etc.....