I booked a fully flex J ticket on lh.com and it sat as a pending transaction on my credit card account for a week and then disappeared completely.

I have checked whether the booking is still live, and it is. I have tried changing the date of the booking and all seems to work although there is some very odd info given :-

Rebooking overview

Additional fare/per passengerRebooking fee
No. of passengersSubtotal (all passengers)AdultsAdditional cost+ 2.82 GBPAdditional cost+ 0.00 GBPx 1Additional cost+ 2.82 GBPInformation
Prices displayed are surcharges to be paid on top of your original ticket price.
Additional costs incl. taxes, fees & surcharges + 2.82 GBPInformation
Your rebooking results in a refund.
The ticket price was recalculated based on your rebooking. The credit either results from a tariff change, changed or unused taxes and fees. Settlement of credit and debit is carried out in separate transactions. The refund shown below will automatically be credited to the form of payment used at time of purchase. If payment was in cash you will be contacted by phone at the number you provided.
Refund - 1,000.00 GBP

I am not surprised by the odd £2.82 "fare difference" (rpbably something to do with a minor FX change) but have no idea what the reference to a £1,000 refund is all about.

As it happens, i need to cancel and "refund" the ticket. Any clues as to what is going on here ??