I just got the following text on my mobile from this number:

Your entry in our drawing WON you a FREE $1,000 Bestbuy Giftcard! Enter "405" at www.bestbuy.com.bezv.biz to claim it and we can ship it to you immediately!

I didn't enter a drawing...

Also received:

Your entry in our drawing WON you a FREE $1,000 Bestbuy Giftcard! Enter "405" at www.bestbuy.com.bezv.biz to claim it and we can ship it to you immediately!

Also did not enter a drawing. Nor have I bought anything from Best Buy in over a year.

I got the following text message:
Your entry in our drawing WON you a FREE $1,000 Bestbuy Giftcard! Enter "405" at www.bestbuy.com.bezv.biz to claim it and we can ship it to you immediately!