I ported to MTN and now I cannot use my number.

I ported my Vodacom Number to MTN on the 1st week of May, just a couple of days before the strike I was made to believe. My Vodacom number, which I've had for over 10 years, has since been half-ported by MTN. I have tried almost everything to get my number operational but, to no avail. I have tried over 5 times to perform a sim swap to get my number through the MTN store in Mayfield (Daveyton), the guys failed, but through no fault of they're own. They assured me the problem was in the porting of my number, which is out of they're hands. This is after we attempted sim swaps on 3 different sim cards. The whole episode is a living nightmare, as the number in question is my business number too. I would really like some urgent assistance with getting my number back.