MTN are ********

I have 900MB useless YouTube data bundle that I purchased with my hard earned money. I tried to call the call centre and I spoke with different ladies trying to solve my issue but still. The other call agent said YouTube can't work if I don't have another data on top of that 900mb I have, I purchased again. Other agent said my YouTube version is too old, I updated but still doesn't work that 900mb still there and do nothing. So MTN your time is coming, I'm going to complain in also community radio over and over.