Thanks for letting us know this issue. We will be looking into why you cannot purchase more than one A2OC line badge, however with Easter an update will be delayed due to those with access to the softare being unavailable this weekend.
A workaround in the meantime would be to place 2 orders. Of course we are aware the workaround is a bit of a pain.
The price given for the badges is inclusive of Uk postage.