Terrible Service!

Please assist with the correct escalation process, as I have exhausted options available and still No Joy! I mark today as the 6th day without internet, due to this I can't even work from from home. Every time I contact Rain, after a long wait on the phone the agents will say they have escalated my matter and someone will contact me back, yet no-one has got back to me till today??? This is really frustrating!!! Your speedy attention will be highly appreciated.