cant port from cellc to vodacom

I wanted to change networks from cellc to vodacom as cellc has bed network coverage in my area. I went to a vodacom shop at mall of the north polokwane, after doing the porting all that was left was to get a new Nanon sim from them. As it turd out not one of the three branches at the mall had any Nanon sims. Non the less i set out to savanna mall, amazingly they had stock. After stipulating i want to keep my number i payed for the sim and waited 24 hours as was required only to find out that my old number was not kept, i phoned the call centre and they only referred me back to the branch not wanting to help at all . Returning to savanna mall i did the proses over again and paid for another sim... stipulating again i want to keep the old cellc number, they said its fine i have to wait 48 hours this time...after the 48 hours the number again was not the same. After three calls to the call centre all 3 times they just did not want to help at all, only referring me back to the branch again and again. Seems they do not want new costumers. Looks like i will stay at cellc as they at least don't have any performance problems regarding service.