I don't know how I would do that without a second page where the concatention is done but requires to submit again.
I can work around this I have worked out by taking card details on page one, submit goes to page two to collect the address details and I can concatenate there before final submit to gateway.
Or I can simply do 'View And Confirm Details Are Correct' page. Yes that works.
But if you can briefly explain the method you both mean perhaps you can fill a hole in my knowledge if not too much typing involved?
__________________