No network with Rain

Please save yourself from the worst internet connection ever. We've changed routers 3x and nothing works. It's unlimited speed but I cant do anything on this network. Rain used to be fine but for the past 3 weeks it's useless. No support the call centre agents lie and say our router is picking up 200mps wth come on man. I'm canceling this nonsense. Ive had rain since 2020 and never had any issues before but this is so frustrating