Heading to Spain in a couple of weeks and I'm holding off ordering the tests just in case all the current fuss about the costs of tests does bring them down.
All I need to complete my return PLF is the reference code which will be provided in the email receipt so I could even order the tests once I'm away, as all I need is for them to be waiting for me when I get home. I don't physically need them before I depart. (I will get the pre return departure LFT done locally while away rather than take those with me).
Most companies seem to say allow 5 working days for delivery, so it seems like a reasonable plan to me.
Any flaws?