On a related note: Last week I booked redemption flights through the VS call centre and received an email the next day asking for my feedback on the transaction. Today, I had tome so followed the link and it reported that the survey was closed as it had only been open for 72 hours after the invitation.
That is a pity for the staff at the Welsh call centre as, on both calls, they had been brilliant and I wanted to give lots of positive feedback.