Nobody is going to employ you to work on Christmas Day unless you can prove that you've got relevant experience. For example, there are plenty of pubs which serve Christmas Day lunch. They'll be charging their customers somewhere between �40 and �70 per head for a meal which they would normally only charge �10 to �15 for. At those prices they know that their customers have every right to expect efficient service from well-trained staff. The last thing a publican wants to do is to have to start training someone new on one of his busiest days of the year.
So, before you start looking for work on Christmas Day, you need to think about what skills and experience you have to offer. You'll also have to accept that most employers won't want people just for that day but for several days over the Christmas period.
You state that you've heard that quadruple pay might be on offer on Christmas Day. This could certainly be the case, say, working in the kitchens of a big London hotel but it's not necessarily the norm. I've worked on Christmas Day many times (and loved it) but the best I've ever been paid was 'normal pay plus a free lunch for two'. I've worked several times just for the legal minimum wage (because I'd rather do that than watch some boring old film on TV).
Chris