Re: This is interesting
In fairness to TalkTalk (that stuck in the back of my throat a bit) - I've had 6 phone call attempts to "assist me with issues using TeamViewer" and 11 email attempts asking to add such and such a person on TeamViewer - I've never been a TalkTalk customer and the emails have come through Hotmail.
So I don't think it's just confined to them.
The emails generally go like this:
Hello,
UORetribution would like to add you as a contact in his/her TeamViewer contacts list.
To accept UORetribution as a contact please click the following link.
<URL removed just in case someone is that daft...>