Number theft and Debit Order miscontact.

I opened a new vodacom contract last week. Then after clearly app**** for and agreed to have my debit order date to be the 1st of each month, they tried deducting a debit order on the 28th which resulted in a bank penalty since there wasn't money in the bank. Simply because my paydate is the last day of each month, which is WHY I agreed to a specific debit order date.

Secondly and the worst of all, is Vodacom gave me someone else's number. They refuse to give me a simswap so I can keep my old number I've been using for years. Now the guy who's number they gave me is accusing me of simswap ***** and that I stole his number. I want a simswap so I can use my old number, I don't want someone else's number and be harassed.