(22 Jun 2016, 7:08 pm)Michael wrote Ah right, that's good, thanks, sorry if it sounded like the dumbest question ever!
If you don't have a card, turn up at your local polling station with some proof of address (eg bank statement, bill or recent official letter such as student loan correspondence). They usually know how to deal with people who have lost their cards - they have a list of people eligible to vote there on them.