Yes, it runs until 30th June. Given that there isn't another voucher run until after that date, you might have an easier life if you hold off a few weeks until Tesco has got the points posting automatically.

Also worth flagging up 442 points for certain video games, starting at £15. If you look in the comments on this post:

http://www.headforpoints.com/2014/05...15-video-game/

you will see that there is some decent arbitrage doing Amazon trade-in deals, as well as selling to CEx. You can get down to 0.25p per Avios it seems.