Originally Posted by Orange.Man

"I advise you not to dispute this, as even though I don't know how long they have to claim it, why bother, it's unnecessary hassle"

Well, firstly, if they try to because of it through time taken, they might find out how long it actually is a merchant has to claim the funds. Secondly, disputing a charge is really not much bother, 10 minutes (if that) on the phone to the card company, then they do all the work.