Unable to purchase data through USSD or online

Good morning<br> <br> MTN is really getting worse everyday. In fact, I think you guys are down right useless right now.<br> <br> I am unable to purchase data through the USSD menu *141*2# - it just tells me that I do not have enough airtime to purchase the bundle.<br> <br> Then logging into the internet portal- which is TERRIBLY slow btw- I am once again unable to purchase a bundle because I do not have enough money, so I need to phone the call center to increase my purchase limit.<br> <br> I phone the call center... NOBODY answers... Lovely... So now I will most probably run out of data and face to pay out of bundle rates.<br> <br> I REFUSE to do this... Please contact me ASAP!!!