Very bad communication with customer /clients

Rain has really disappointed me as a customer and I feel they don't have respect for thier clients. I have had connection issues since I started using this 5G router where I never had 5G but 9 accepted it. I haven't had signal at all as I think the Sim is not working. Followed the procedure of contacting thier tech support and all you get is an automated response with not follow-up. I'm WFM and I'm spending exuberant amounts of money of buying data but yet I have a Rain 5G which I got debited on the 1st September amount R699. So I'm currently loosing money on my other jobs that help me feed my family, I just want to know what must one do to get this sorted all I get is DM us your details and also we will be in touch with you within 48 hours but mind you I have been down for 6days now. No call center just automated email service and Twitter account which doesn't help. Rain is very poor and I even regret why I have been a client for over 3 years now and also been recommending it to my fellow peers and colleagues.