Disgusting service home connect data

I’m disgusted by the service that I have recieved , I’ve been using cell c home connect from last year September 2021 to date , I bought a terabyte in January 31 knowing it will last me 60 days only to be told that it valid now for 30 days worse that was disconnected on the 26th February to date no one explained imagine R900 down the drain , now today I purchased R400 airtime from my app when I convert the airtime they have taken down the plan for R389 which is 100g during the day and 100 at night now I’m told I only have an option to purchase 50 gig for 170 which is 25 gigs during the day and 25 at night which won’t last me even a week , now I am making cell c richer while this was not communicated that plans will change , only to be told when I call the contact center. I’m now stuck with R400 airtime on the card as I feel it will be unfair to purchase 50gigs *2 for 340 which will only last me a week as my husband uses this for work as well when he is working from home. I hate the service and I need this resolved as I need my normal 389 data for 200gigs if that can’t be resolved I want my refund as I can’t spend so much on data .