There isn't actually anything to fix. It is how cellular works. Not every tower connects to the ground infrastructure. Think of it like a massive mesh network where the actual connection to the servers is in Montreal but that mesh network extends all...
The SIM can be popped out in one of 3 sizes. You want the smallest, which is a little bigger than the contacts. You should be able to pop it out with your fingers.
You can start by changing your network password. This means, you will literally have to reconnect each device again with the new password. Make it something peoe won't be able to guess. Hiding the SSID once that is all done makes it a lot harder to k...
If you are using an eSIM. It might be time to go back to a pSIM. If you are using a pSIM, get a new SIM because it is more than likely the SIM has somehow been cloned. I'm not going to dive into the ways this can be done and how easy it is, but a pSI...