Stolen iPhone being used offline? Find my updates location regularly

Over a month ago, my iPhone was stolen and located in Romania. I marked it as lost and requested an erase via Find My, but it’s still marked as pending. Despite that, the phone updates its location daily and in real time. It has been at a phone repair shop for the last month, now it looks like someone new is using it.

The phone no longer appears under Settings > Apple account > Devices.

It’s still visible in Find My, updating location regularly.

The device appears to be used regularly — it “leaves home,” goes to a workplace, and then returns home again.

Other old iPhones of mine I don’t use anymore does not show up in the Apple account device list either, but they still appear in Find My

How is the phone being used so regularly if it’s not connected to WiFi or mobiledata, why hasn’t the erase gone through?

Is it possible a the phone shop bypassed activation lock but it’s still somehow tied to my Find My?