I am unable to terminate my contract

Since the 07/04/2015 I have visited the Mtn store at Pine Crest Centre in Pinetown and was advised to call 808 which I did a day later. I was told that someone will call me which didn't materialise. On the 09/04/2015 I sent an e-mail to [Email Removed] - still no reply. I, again, sent an e-mail on the 15/04/2015 - still no reply.