Rain POP and Network Issues

Rain usually takes money from my account on the 25th of each month. However, this month they didn't. Later, I got a message on Messenger saying I hadn't paid. I asked why, since they usually take the money automatically every month. Our agreement wasn't for me to deposit the funds and then prove I'd paid. They didn't reply. On Monday, I messaged them asking what the point was of me paying for the router when I hardly get any network, especially since I'm working from home and end up buying data from other providers. I also gave them my address so they could maybe send a technician. Then yesterday, I manually paid using their app, but the router still isn't working. I can't connect to it. I also sent proof of payment via Messenger.c