NO RESPECT FOR THEIR LOYAL CUSTOMERS!!!!!

I have complained once before but its obvious MTN does not care about customer service.<br> Every month on the 12th my account gets suspended although my account is fully paid up.<br> Apparently my unbilled balance is R1340 before all the discounts of which my credit limit is R1250.<br> When the discounts are calculated the bill comes below R1250 of which there is no need to suspend the line.My account limit is R1250 i tried increasing my limit but MTN states they will not be able to do so due to my credit history, which to me does not make sense because they have given me two iphone 6 on both my contracts which is worth more than R20k and all i asked was for a R250 credit increase..I have paid MTN over R150k over the past nine years is this really the way to treat your loyal paying customers?????Why should we be inconvenienced because of your outdated billing system??? All i want is for my lines not be suspended on the 12th of each month is that too much to ask for??