Got a reply back from Seetickets after Sundays Fiasco ....
Got through to the site @ 9.22, processed the payment to the point of approving in my banking app, didn't receive a final processed payment page.
Called my bank because I was concerned, was told that they had approved it and it will all be fine. Lovely, I am in for the group of 4.
Pending transaction disappears Sunday afternoon, haven't stopped thinking about it since....if I haven't got to that point it would of been easier and I wouldn't be having night sweats!!
Truly and utterly completely gutted....not ready to go full Will Smith just yet though....