12 years with MTN and now extremely disappointed.

<p>We are loyal MTN customers that have been with MTN for about 12 years with evolving contracts but we have always been on a top up contract that has always had a limit.</p> <p> </p> <p>Recently we were supposed to upgrade two of our numbers with MTN so in March one of the contracts were upgraded and we asked them to hold on with the other. While they were holding on, someone at mtn changed the limit on the phone that had not been upgraded and suddenly we were getting billed R9000 so we called in and no one could explain to us what had happened. One of the agents said that it was not our fault as it had changed on the system because of the upgrade which no one informed us about, but than some time after that we were than billed R12 000 so we called again and were told that it was under investigation.</p> <p> </p> <p>No one got back to us about it until we called and then the story changed and we were told by someone else that we had changed it! After having a limit of R0 for 12 years, why exactly would we change it and plus we have been asking for proof since they told us it was our fault and they have not been able to show us proof. And as loyal customers we would expect MTN to inform us that if an upgrade does not take place immediately, it would change the limit but no they just changed the limit without informing us and than accuse your customers of changing it. Now that they have failed to show us proof and we have not fallen for their trap, they decide to suspend all four of our numbers.<br /> </p> <p>I am really disappointed in MTN and would really like some feedback on this because your investigations only lead to the customer being at fault.</p>