Mobile Wife router

My name is Sibongile Ngcezu, I renewed my Wifi contract. Everything went fast and was delivered. When I opened the package I was surprised that the sim card was not inside sealed mobile router. I then proceed happy with my data, unfortunately my happiness was short lived because I couldn't connect it. I called Vodacom 3 times until my airtime was finished. I tried again following month and spoke to Tobby she suggested I send an email she will forward to the relevant department still waiting till today. I tried to call again this time a consultant tried to help but could not succeed. To cut the long story short I then decided to go to Vodacom Centurion Mall to get myself a phone. Also requested to be helped with the problem I have. To my surprise the guy who helped me told me the last 3 ICCID numbers do not match with the one that Vodacom has on their records he suggested I buy nother sim card for R70,00. The sim card that was delivered to me by their people. Now my question is who did this why am I made to buy a new sim and what happens to my data that I have not used since this thing was delivered? I am so not happy right now and this is not the 1st time. It's like giving an abusive boyfriend a chance but he keeps on ****ing up and say sorry after. So please can someone deal with this because I am really not in a good place right now. I want my data and my sim card money.