No option to add card to Apple pay (in UK)

Hi, I've been trying to add a card to Apple pay which launched here in the UK yesterday but there is no option in the passbook app to add a card. I have an iPhone 6, I'm running 8.4, my region is set to UK (always has been), my card is supported, I've tried switching off and on, soft reset etc etc and nothing is bringing up the option to add a card. All I get is the option to scan or search for an app. out of curiosity I changed my region to USA and the option magically appeared but as I'm in the UK with a UK bank card it obviously won't accept the card.

I have had a look online for some ideas but the only suggestions do a fix are the ones I've already tried. Is there anyone else in the UK that has tried everything but still can't use this feature? Does anyone have any clue what's going on??

Thanks!