How long do I wait before proceeding with legal action?

[gunsports 10]

1: I bought an item from a seller on BOB. Paid within 12 hours of the bid closing on me. Seller gave me a positive rating and then; nothing. Does not respond to my e-mails and the telephone number advertised is on voice mail. It has now been more than a week. Should I wait longer or should I proceed with legal action against this seller?

 

2: The item I bought is an Extreme Ratio knife. This item was advertised as such, even though the sale of these items have been banned from this site. I suspect that this item is a knock off and as such, the sale is illegal. I see that, despite the embargo on selling these items, other vendors are also still selling them, although the spelling of the brand name has been altered (the picture still shows the 'genuine' article). Surely this is highly irregular; and infringes our copyright/intellectual property laws?

 

Advice please.

[kyle2 10]

Have you contacted community watch?