Bumping this thread to see if anyone has been able to use two Barclays vouchers in one transaction. I am looking to book two tickets r/t LHR-NYC and despite the booking page showing me I have three vouchers to choose (and asking me in the plural which do I want to use), it only accepts one voucher.

So has anyone done it? Even over the phone would be fine, of course. TIA


Post phone call ... yes completely possible, doable and done (no fees as you can't do this online).