Incomplete Application and now I have 2 sim cards delivered

Received a Marketing call on a MTN data deal, after speaking to the sales agent, the supervisor was taking my call and was talking so fast I could barely hear a word, after I had asked him to clarify something he hanged up the phone. I then used the online chat on Mondo to confirm weather the application went through as I have to completed it, then without documents send, two sim cards arrived and now I have apparently opened up two new contracts! This is really ********** and not acceptable, no I am still struggling to get that cancelled. And now I have to incur cost for something that I did not sign up for.