Hi,
Those “Microsoft Marketplace” charges usually mean one of two things:
They’re linked to a different Microsoft account (old email, Xbox profile, or family member), so they don’t show under your current account.
If no match exists, your payment method may have been compromised.
What I suggest is:
Check Order history for all Microsoft accounts you’ve ever used at account.microsoft.com/billing/orders.
Use the Investigate tool under Manage payments to trace the charge.
If nothing matches, contact Microsoft Billing Support and your bank immediately to block and dispute the transaction.
After resolving, secure your account and add two-step verification.
I hope This helps!