Customer service sucks. No feedback on logged ticket after over a month.

I have a fixed line LTE Internet service package through MTN. I very carefully monitor my usage on a daily basis so I don't run out before month end. I had problems in April with the info on the monitoring app which was inaccurate and resulted in me running out of data 4 days before month end. I logged a ticket and got a reference number with a promise of a follow up. Despite asking every few days, after over a month I still am waiting for feedback.