I've found loads of sites that will do the unlocking. Are they safe though? A friend has suggested that it might be dodgy to give your IEM number but she's as clueless as me and I don't even know what an IEM number is. Can anyone recommend a site?
I think it depends who you get behind the counter. They're pretty lax at the Vue cinema at Finchley Lido. Sometimes they just ask me to read out the code. I've done it about 4 or 5 times now and always got away with it