First off, I was really pissed off on Saturday at not getting a ticket, drunk later on and posted a load of crap. If I upset or angered anyone my apologies.
Good news today after 90 minutes if piddling about on UEFA.com I managed to get a ticket!
I'm flying tomorrow.
I bought my PCR test through, Attruchecks (£69) and it was delivered by Eurofins at Manchester Airport.
Please note the docs said it was at the Raddisson Blu Hotel, but when I arrived yesterday this had changed into a quarrentine hotel (£4 blown on Parking Eye). There was no answer in the phone from Attruchecks or chat intheir website. The guys at the Raddisson reckoned Eurofins were at the Clayton Hotel, they weren't. Eurofins were actually at the Hilton Garden Hotel (to the left of the main entrance) There is another testing company there (to the right of the main entrance) too, and also a 3rd company which you can book at the T1 bus station (same day results ~£85). You can guess I wandered about a lot!
https://www.collinsongroup.com/en/covid-19-testing/manchester-airport
I recommend parking at the Clayton and walking if you're not sure. They use Good2Go for parking and you get 15 mins free (which might be long enough), but they bill you after you have left, so you're not pondering how much to pay because you don't know what the queue is like. The account takes time to set up.
They were fairly laid back about it all and don't forget your passport. I didn't have the paper form, but they had plenty. I think Eurofins will be busier on Thursday if your flying Saturday, or tomorrow if you're flying Friday. I got my results through at 9am today, so well early, but it's no good if it comes through at midnight, so you really need it 2 days before you fly (you also have time to chase it up). That said there is the more expensive Collinson one above.
Just my experience, I hope it helps.