I bought a voucher for a silver theatre two tickets. You do not know before you buy the voucher what tickets this allows you to book. I selected two tickets to see Mary Poppins on a Monday evening. I booked the best available tickets that I was offered for that performance . When I looked these up on the theatre website the same day they were £42.50 each, a total of £85.00. The deal costs £129.99 ! You are not allowed to change this deal once purchased . I did contact Buy a Gift and received a voucher, but no explanation. However, many people might not realise that they have overpaid for the tickets. It needs to be made clear that the tickets offered may not be of the value of the cost of the voucher. However, the show was .brilliant.