Ok so this is one of the things the RFA require before I get a full offer... I tried to donate blood this evening but they determined that I reacted too badly to it. They also said that they won't be testing the small sample that I gave...and I can't try to donate again until well after this deadline the RFA gave me. My first port of call with this one was seeing my GP, but they couldn't help. Are they any other ways to get your blood type? Maybe private healthcare firms?