Mondo MTN. Vs Mondo Vodacom

I am interested in a sim only contract An Mondo MTN agent phoned me I gave my details and was approved. An debit order was created via my bank. The courier made arrangements with me The next day I was phoned by Mondo Vidacom . The vodacom agent told me MTN did not approved me but vodacom wil give me a sim contract. I ask the agend to get her facts straight. A MTN courier came to my house He tried about 10 times to take my finger prints it failed every time his response was a network issue He then suggested we go to my bank for bank statements. I declined and ask the driver to leave. I get telemarketing spam on a hourly Basis since I gave my details