Less than half-price pre-departure Covid Antigen Self-Tests

Could anyone returning to the UK to arrive before October 4th make use of two Chronomics Rapid Covid-19 Antigen Self-Testing kits for, say €25.00. We ordered before departing the UK but were too late to cancel following the recent change and they will not be required when we return to England later in October. They were delivered yesterday and are in original unopened packaging.  The user will need to use of the internet to complete the registration code on the Passenger Locator Form and submit the test with a photo of the passport to obtain the result before departure.  We have previously used the provider with no problems. I can deliver the test-kits anywhere in the Mojacar Player area.  It seems a shame to waste them!