I checked at 23:15 last night for a GLA-LHR-ICN then HKG-LHR-GLA and the price was £1028 so I paid the £10 72 hour hold. But checking the same flights today as a new booking it was £1051 so no massive difference. LHR-ICN and HKG-LHR was also WT+.
How much has the booking went up overnight?