MTN blatantly ignoring customer complaint follow up

Customer service is shocking. I've messaged MTN South Africa on their facebook messenger regarding data that disappeared. The only response I received that they needed the number in question. After sending it, I haven't heard anything. I keep following up on a DAILY basis the last couple of days, and my messages are just ignored. As a last resort I decided to comment on all their facebook posts today, but after posting on a few of them, it seems as if they blocked me to comment. I've logged a complaint on MTN website as well over the weekend & no surprise, ALSO no feedback whatsoever. Nice one MTN!! Is somebody actually going to get back to me? Is ignoring customer complaints the way you do business?