Paying for free services at MTN

I recently bought a sim card, it was rica’d at the store i bought the SIM card. So now the issue is that its not activated, i tried 173, the Consultants told me that they cant activate it for me I should go to the store-Granted, this morning i went to the store, the horrible service i got, tjeersm, only to be told, no go and buy another sim card. No, im not going to do that as this has financial implications on me, and no im not talking about the money i bought it with. I demand that MTN actives my sim card, imagine im a new customer but I regret moving from Vodacom. Can I urgently get assistance. I just want the number to be activated. At the store i was told, it would take 7 working days. No, please can anybody or somebody activate my line-FREE OF CHARGE-IMMEDIATELY