Such a horrible treatment by staff, rude

Visited mtn on 16/10/2015 to apply for new contract. Told me it's conditionally approved and I will get a call back. The next day my number stops working then I assume the contract was through, but was out of town and could not go to the store. 18/10/2015 I go to the store where I get told that my number went through to someone else, I must go to police station to prove that the number supp****. I question that as my number stopped working after l visited mtn store. The two consultants start shouting and they tell me they are going to cancel my contract. We get into an argument, my bag gets thrown towards the floor and they start shouting. I have never experienced such treatment in my life and it was humiliating. I only wanted a new contract as I already have an existing one with mtn <br>