Tracing from bank authorization to Apple ID

I have a charge on my bank statement of $75.76 from Apple.com/bill, but there is no receipt of the transaction, nor can I find any amount on my Apple ID associated with this amount.

is there a way to determine if my card is saved to another account?? (Thinking my ex boyfriend may have my card saved but is there a way to fix this?) or simply to trace a transaction to Apple ID from the banks authorization number?