Rain 5G internet Service

Since the 31st August 2023 i have only been getting a 4G signal. I have a 5G router and i pay for 5G services. I phoned Rain on the 4th September 2023 and explained the issue. The customer agent who helped me said that sometimes the router switches from 4G to 5G and that it isn't a problem as 4G can be as fast as 5G. I told her my signal with 4G isn't as strong compared to the 5G signal. She further said the 5G tower close to me is working. But couldn't give me a reason why I'm only picking up 4G and i explained to her that I'm paying for 5G services and the router has never does this before. She rebooted the router from her side which did not help. I left it at that as i did not want to debate the speed of 4G and 5G despite telling her my speeds are not the same. I decided to give it a week to see if it resolves. It didn't. I phoned Rain today again and explained the problem. The agent who helped me said for some reason i am only connected to the 4G tower and couldn't give me a reason why. He wanted to try the router reboot process, i told him it doesn't work and Rain tried it last week. He then asked for the SIM card number and said another team will call me to assist. Two agents giving different reasons. So now i must just wait for the call. In the mean time i am not getting the internet service i pay for.