Bad service

I am very disappointed with MTN, yesterday at 13:13 I received a call from this number *** and the caller said he wants to confirm that I requested a Sim swap he is from MTN. I told him I did not. I asked him why my true caller ID says your number is registered as an FBN number? and 066 its a Vodacom number but still he wanted me to comfirm my credentials I said he must not take chances with me and I hang up. I then tried to call MTN and report this since my number it's a contract number but to no vail. Every time I call, ***, 808 or 135 I was asked stupid questions by the machine never transferred to talk to a consultant. What if I did give my credentials and there was ***** on my accounts and I tried to call MTN and since we are on lock down what plans do they have in place to help there customers and even worse their data is ridiculous it doesn't last, 1G doesn't last even if you are not watching videos. MTN improve your services to your customers Telkom data is much cheaper and last longer than yours