Upgrade, please more like a HUGE DOWNGRADE

So Vodacom phoned me for an UPGRADE. NOTHING WILL CHANGE THEY SAID, IN FACT, IT WILL BE BETTER. well not sure if they understand the words upgrade or better. As i asked the person who phoned me if anything will change and she said in fact it will just change for the better. FIRST they took all my minutes away. My mum is 90 and i use my minutes (for which i pay extra) to phone her. They could only add it at the end of 2 months!!! Now i had 20G data, and i am not stuck with 7.5 after they gave me my minutes back. HOW ON ****** EARTH, does this work, you give me my minutes bakc, but take my data away WHY WHY WHY WHY WHY WHY. Someon from vodacom phoned me, apologized and said she will come back the same day, that was Monday MORNING, we are now at Wed afternoon. Please fix your mistakes!