MTN the biggest Con ARTISTS in the industry!

I bought an 80GB promotion data deal that MTN is currently running during the first week of August. I initially had problems with the router, so I put the sim in a phone to check if it's working. I checked my data and I only had 35GB of data which did not make sense as I should have had somewhere near 70GB. I lodged a query with the MTN store and they said that they would only load my data on the 12th of the month because that's how MTN does things. I accepted that because I had data to use. On the 23rd of August, suddenly I don't have data and I'm supposedly out of bundle. I don't understand how I could have possibly finished 40GB of data in just over a week when 28GB generally lasts me a month. I call in customer care and I'm told, nonchalantly, that they didn't activate my 30GB promotion for both day and night and I was only given 10GB of day and 10GB of night data. She then says that shell escalate it and then the promo will be loaded on and the turn around time is about 5 working days. So I ask her what must I do in the meantime she tells me to just hang on and be patient. I logged the call on a Friday so technically I'll be without data a whole week, for MTNs incompetence. I ask to speak to a manager who further doesn't take me seriously and tells me she understands my frustration but they cannot fix it from their end. So technically I'll be paying for something which I do not have. Had I not checked, MTN would have continued taking my money and not giving me the services that I asked for and they wouldn't have bothered, as long as they're getting unjustly enriched. I'm upset now that I must buy more data when I had budgeted on their data deal. As soon as all my MTN contracts run their course, I'll be taking my business elsewhere because it seems MTN strives from conning customers! Here I was thinking they may be a reliable brand. I am super livid.