Megabikes

Katlego Masigo, representing Megabikes, has emailed me a few times stating that we owe money to "Megabikes" for some or other book. Firstly we are not bike people and secondly< I do not recall ever doing business with "Megabikes".

I have repeatedly asked for proof that it is I who ordered the book. ID?, Address?, where I ordered it etc but to no avail. I cannot just pay money for something I know nothing about. Am I correct?

My sons had bikes so many years ago but they never ordered it either so I am really confused.

Please Help?