Can't get hold of anyone!!!

I upgraded over the Easter weekend to a 5GB My MTNChoice contract. Previously I was on a top UP 2GB contract but they no longer have top up, so now you have to phone customer service/call centre to set your limits. Firstly why can't the walk in centre staff do that as well as amend your email address so that you can receive your email statement (something I have not received for over a year). Staff member at Northgate shop gave me 083 1 808 to dial from a landline. Firstly it does not work. I have to dial from my Cellphone which is not MTN so I am paying for this call. The contract is for data and sim is used in an iPAD. Since yesterday I have been trying to phone this number. I either get cut off or holding on for ever. Do they use the same call centre staff as the municipality? I have tried email customer service but just don't get any response. As it is when my 2 year 2GB top up contract came to an end 31 December 2014, in January 2015 they still continued to charge me for the Wi-Fi ****le!. Keep on telling me they will sort it out and then voila! they charged me again for February and most likely for March too.<br> <br> Can there be any worse cellphone provider than MTN?