No one is giving me feedback

I have called MTN on the 12th of March spoke to Christian and i did an application he promised to call me back on the 14th at 1:30pm and that wasn't done. I called back and i was being sent from pillar to post and was then transferred to a guy that told me that my last contract was with Legal department my question was how as that was paid and cancelled and said that my id number is linked with a Phumzile that i dont even know. I eventual got through to someone that was willing to help they called me back and did all the necessary checks however to this day i haven't received the sim card that was supposed to be sent to me buy the last week of March or first week of April.<br> i then later gave my mum's details as a sales lead instead she got a call from YELLO MOBILE and i later also got a call from YELLO MOBILE. question is will i ever get the sim only as per request, and why after i gave a lead through then someone from yello mobile ends up contacting my mum saying that i gave them the details. as far as i know there's no yello mobile linked to MTN..<br> 1. will i ever get the sim card<br> 2. who gives out my info to this yello mobile<br> 3. what happened to customer service