Apple.com/bill - Unrecognised Transaction

Has anyone figured this out? I have a transaction on my bank statement for £66.99 and all it says is apple.com/bill and the number.

I've checked my Apple purchase history, nothing. I've checked my emails for a receipt, nothing. I've looked at all the solution Apple Help supplies and nothing.

I simply cannot identify the charge, or even request a refund as it's not showing up in my purchase history.

What do I do now?

[Personal Information Edited by Moderador]