Disgusted

I upgraded last week from 4G(had it for 4years) to 5G after being garuanteed that it will work, I have had no internet since i upgraded and I have a business to run, phoned them to down grade again, told me I must still pat for the 5G end of the month eventhough I had no service and I have to re-register again and pay for the 4G, and will only get sim card in 3-5 working days, so my business must stand still, asked them to make it urgent because its their fault and that I am not going to pay for 5G also as I had no service, they told me sorry, its policy, wanted to speak to manager, everytime in a meeting, I am really so sad and disgusted. I have told so many people so many good stuff about rain, I take it all back!! My money is good enough but when I as a loyal customer need help, then theres no help.