Mtn upgrades and customer, direct and summer mobile poor service

Middle July 2021 one of the call centre ladied phoned me to ask if I want to upgrade my data sim card ***. She didn't explain to me that the anytime data is going to be split in two. Promotional data 30G and 20G for data share. I've explain to her I only data share from that simcard it's not in the phone she told me it will be exactly the same. So my data in July run out and I counslt understand why. So when I got my new data on the 12th of August I saw that it's split in 2 as above mention..

I had first 20G night and 20G anything I could've shared my whole 20G anytime. I upgraded that package to 40G night and 40G anytime I could've data share my whole 40G anytime too but now it's changed and what they do they don't advised the customer, if I knew this would've been the case I would've waiting until its time to cancel my contract with them. Since the 12th of August I've been calling mtn they be bull****ting me around. I must phone mtn direct, mtn direct say I must phone mtn summer mobile because customer service can't assist me. Today is the 18th of August I'm still waiting on a response. Mtn summer mobile told me I must wait 24h to 48h its pass the waiting period already.

I really need someone to sort out my query or my contract must be canceled and I'm not going to pay an extra cent!!!!!!!!