As far as I can tell on such short notice, Archimbaud's account is the only one affected. We will investigate this further on our end, and have asked our payment service provider to perform an investigation of their own.

There have been cases when friends, family members, co-workers or other relatives used someone else's account by mistake, but it doesn't like like it's the case here.

Just to clarify (and not spread panic;)) - it doesn't look like purchases are being associated to the wrong accounts at random, so I don't think it's a mismatch, as Archimbaud put it.

@Archimbaud - please check your e-mail as soon as possible, as I need your help in investigating this.