I’ve been having trouble with my connection

I’ve been having trouble with my connection. I can’t even send a WhatsApp. I’ve been trying since yesterday & I pay R649 per month. My signal strength appears to be ok but nothings happening I’m wasting my data on my cellular network & rain couldn’t care less. I reactivated my service after not using rain for years due to issues in the past. I thought things would’ve change but it didn’t. When I signed up again 2months ago, I wanted a whole week for my delivery. I paid prorated & was advised via telephone that I’d be credited for the week I lost. Nothings been communicated again despite logging a ticket. Lastly, their “support” is poor to say the least. I’m always speaking to a robot providing generic answers. Telling me the obvious which I’m doing countless times. I’m paying for something I cannot even use