HMV took my money, reading ticket 2011?

i had the page up, buying too, was on the last section of payment and the 5 min timer ran out whilst the page was loading because it was loading so slow as so many people were on the site. I check my bank and ring them and they say �402 has gone, which was the price of the 2 tickets. Im going to ring hmv tomorrow, has this happened to anyone else? could i still get my 2 tickets? will at least get my money back?