MTN is *****ing from its clients

I bought 10Gb data for 2 different phones yesterday and the data is not reflecting on both cellphones. Today I called 135 and I have been sent from pillar to post, I haven't got an answer about my data. I have bank proof got the purchase of this data and sms confirmation from MTN that data is recharged but when I log into myMTN APP there data is not there on both phones