Just to let people know ... Today I called Masterlock (Canada) and they were very polite but said that they will not do anything to help out customers who have purchased their now useless locks. That this is their policy. So unlike Raiyn, I didn't even get an offer to exchange my tubular key U-lock for one using flat keys. I'm thinking people should either flood masterlock with emails of compalint, or else boycott them.