Longlet friends and family voucher but no printer

[LaBelleDameSansPatience]

... will they give us the discount without a printed voucher? Going tomorrow morning; didn't know we were definitely going until about half an hour ago. any experience?

Can you get the voucher showing on your smartphone?

Ooh, yes, didn't think of that .... and finally didn't go since it was too much bother to drive to the nearest town with library to print it out first ... Longleat take note!