EXTREMELY DISGUSTED IN POOR SERVICE AND DEAL SOLD TO ME

I had joined RAIN on 20/03 with uncapped 4G simcard .i was told my area has the coverage and this would work perfectly .the following week the sim was delivered .once we started using this sim it pics up the network however we have coverage of 0.03 on uploads and downloads , which means we unable to use it . with this said i am now purchasing daily data bundles for my family as we are working from home . i have been calling them daily and everytime i am told someone wil check and return my call, which ofcourse is not happening . i was then asked to check speed via chrome which came to the conclusion this is not working , so instead of solving my problem afterall they wanted immediate payment , i am now still left waiting on someone to call me back and having to explain all this drama i am experiencing yet again, when calls are recorded and all information on system . technical support confirmed they are full capacity on this and not sure why they are still selling / recommending 4G to customers . i have asked them to upgrade me to 5G as this is their inconvenience and due to them i have spent more on data then planned .i am extremely frustrated at this point as i am unable to work without this . it was easier selling the unacpped sim to me even called back to check that pop went through and now they leave you hanging like its my problem . my solution is to upgrade me to 5G with them covering the difference as its their fault i was not told that it will not work due to network/ towers being fully occupied . instead i have them call me to cancel and then upgrade but only if i make immediate payment . again they wanting money when they already have my money for the uncapped and i still cannot make any use of it . when your at fault you need to fix things asap in order to get happy client , instead i am left to call and still have no real answer or solution from them