Rain Poor Customer Follow Ups and Feedback

Ever since I received my Rain router and 2 mobile sims, I have had endless issues, and it's been only a week. Poor service or feedback, and although my router seems to be working perfectly fine now after initial problems, both my mobile sims do not work, and after endless calls and emails, there has been no feedback yet; they say it's been escalated. My airtime has run out trying to phone them from my other number to resolve the issue, and still 5 days later, and no feedback unfortunately.