Cancelled contract.

After renewing my cell phone contract for the upgrade and having in place a standing debit order which was to start at the end of April 2015 i was happy that things would be smooth sailing as in the previous 2 years only to find out that they never did take off my debit order as arranged and in September2015 a R1500 debit order came off my account.On inquiring about it was i told that i was for the arrears,so a new agreement was once again placed for the new debit order,for the amount which they required and this was to come off at the end of each month starting from end October 2015 for R1500 which did happen,but for no reason a 2nd amount came off a week later to which i reversed back and then contacted Telkom informing them to please correct it.Today this has still not been done.I have spent the whole day today in the Telkom branch in Kempton Park and still not had joy.My cell is now block and I am unable to use it.The error is on their side not mine.Ive not had any smses sent, no emails sent and have they failed to contact me. All of which can be proved.Alfred said that at by 3pm today 8/1/16 my cell would be switch on.An guess what still not done. Plse assist