All your feedback as a seller is from over a year ago and you have nothing recent ended

Is it possible the payment was for an item you sold some time ago that was 'relisted' by eBay  (which they have a habit of doing?)

Not sure which phone numbers you tried as the call center has been closed for well over two years

The headlights you currently have listed for sale, did you list those (and of so, have you completed sign up for Managed Payments)

Or should those not be there?