Very Very Poor Service!!!

I requested a change of bank account from savings to cheque account since October 2014 and even today It has not been changed. I called the call centre and visited telkom shops several times and still it has not been resolved. <br> <br> On the system it appears as if it is changed but the debit keeps on going through the wrong account and my bank is charging me R138 for any unpaid transaction. <br> <br> Secondly on the 20/08/2013 I upgraded my contract using selldirect. Last year May 2014 I migrated from smartplan 50 to smartplan 100. When I contacted Telkom shop for an upgrade I was told that during the migration my contract was reset to begin on the migration date, in which this was not explained to me before migration and told that I can only upgrade on 2016.<br> <br> The payment and warranty period for my S4 ends this month and I will not by any means pay extra. <br> <br> I request this matter to be resolved as soon as possible so that I can upgrade before this month ends.