If we have advance notice of the unavailability then we contact you and suggest any alternative products which are available.
When ordering you can select your preferences on whether we should swap or refund unavailable items, which we will try to follow if possible.
If we become aware of unavailability with short notice are are unable to contact you in time we will adjust the order and reflect the amount due for COD, or issue a voucher/points/refund if already paid.