Bad service

I’ve been struggling with network connectivity for 7+weeks, my router cable was faulty, it took them 2 weeks to resolve my issue and get the cable delivered. Yesterday they finally delivered i plugged the router it worked fine from past 10 in the morning until around 17:00.I’ve been calling rain about failing to connect to the internet and they keep telling me that they have escalated the matter to their technical support team, till now I’m still waiting for an email from them with an update and still there is no connectivity on my side👎🏾. This is regarded as service failure, and has put my job on the line as I am working from home, I have paid for a service that I am not receiving, I have escalated this numerous times without effective correspondence.😡😡😡😡😡😡😡😡