I don't know if it's a fake lawyer but they seem to know all my details.
I was a paying customer (paid the bill in advance) in 2024
In 2025, I didn't chose to extend the subscription as I wasn't satisfied, but I was open to continue once my issue is fixed. I sent several emails about it every time Teamviewer emailed me to pay another year. I never got a reply.
Now they demand me to pay the whole 2025 plus lawyer's fee, which is about the same amount. **bleep**