U2 / Ticketmaster - More than 1 show and they cancel??

I'm close to tears here at the moment.

I missed out on getting tickets for the first 2 U2 gigs in Dublin, but managed to get 3 standing tickets for the Manchester show (online) when a few more went on general sale around a month ago.

I also managed to get 2 standing tickets for the 3rd gig online last Saturday.

Brilliant!! Or so I thought until around 5 mins ago.
I was just checking ticketmaster and the U2 shows, and on the "Purchase Page One" for the UK gigs it says:

Please note: You are strictly only allowed to make
one booking for this tour. There is a limit of 4 tickets per
booking and because you can only make one booking, you can only
book for one venue. Therefore you will be unable to book for
more than one venue and unable to book for more than 4 tickets
at your chosen venue. Multiple bookings will be cancelled
without notification.

I'm didnt think much at the time of buying my first tickets for the Manchester gig, and I'm pretty sure this warning wasnt on the Irish site last Saturday.

I couldnt care less about the 2 for Dublin - I only got those for a friend who couldnt get them. The ones I really want are for Manchester... I've flights and hotels booked already!!!

I'm just gutted now.... do you think they'll cancel both my orders or just one?
Anyone else know of this or in the same situation? Should I ring and try to cancel my Dublin tickets to "save" my Manchester tickets?