Disappointed by Rain service

Disappointed by Rain once again. I am paid up to date on my account, but the router box keeps saying 'check account'. I tried sending messages on the website and Whatsapp, but it does not give answers related to the question. I have 3 different reference numbers from them. I have switched the router off and on 3 times as advised. I phoned yesterday, and the lady said she'll escalate the issue to the accounts department, but we should have internet in a few hours. It's been 24 hours now. This morning I spoke to a KC, who said the matter will be escalated again. I keep having to buy data after having to pay for uncapped that I do not have for work. Please assist.