What is going on? 4 weeks of inconsistent service.

I've had the same issue since July 1st when lightning struck somewhere nearby and both my modem and routers surged out. Once I got the notification that the service was out in my area I waited a couple of days to see if my router and modem is going to reset but it did not so I wait a couple of more days still no internet service. And then duribg the next storm it happened again after the system came back up still no inetrnet . Kept getting error information,  could not find ISP provider or connected without internet or connected but not secure. A week later I called and made an appointment but unfortunately my doctor's appointment was going to run into the time they were to come out and I canceled the day before was in advance. Two days later I rescheduled for them to come out and was waiting for them to come on the day the appointment was rescheduled and I get a text message from them saying it had been canceled. Long story short I ended up making another appointment they finally came out on July the 22nd. Technician said the modem has surge out and I needed to replace it. So now I have to buy a new modem and still no internet. So I'm having to use the mobile data on my phone to do certain things, but other apps don't recognize my device and I can't get in some of my accounts for almost a month now. I was told once I get the new modem to call Cox and let them set it and then I could get a credit for the days I had no internet. Well I'm still waiting on the modem to be delivered through FedEx.