I ordered 5 WOTLK from Play.com (before I realised they were £5 more expensive then elsewhere) - they took from ordering on a Friday, until the following Friday to arrive.

I ordered the 5x CATA from theHut.com on the Sunday, they arrived on the Thursday.

I got tired of waiting for Play.com and bought the keys online (not through Blizz), then sent my order from Play back. This was the Thursday (day before they came ) well I got to play it a day earlier....