Stayed last Saturday night at Warwick Farm HI ( on a PB offer of 5,000 points per room ).
They accepted the IHG Dining Rewards $50. eVoucher OK.
Only a 'manager' seemed to be able to 'authorise' and process my Member card.
A few of the 'Rules', I was advised of ( by a hotel manager ) ...
Using the e-Voucher, the customer must settle the account at point-of-service. The balance can then be attributed to the room account ( and paid on Check Out ).
You can't use the e-Voucher, and also claim the card's 25% Discount. It's one or the other.
Each customer needs to decide on how to best use their privileges ...
On occasions, you will be better off using the 25% Discount ( and keeping the $50. e-Voucher for another 'situation' ).
As an example, I used my $50. e-Voucher at the Hotel Bar, where we had a $64. drinks bill. I only needed to pay $14. ( which went onto my Room account ).
If I were to have used the 25% Discount, I would have paid $48.
I received a parcel of IHG Reward Points for my PB Rewards stay. Obviously no points for rooms, but I did get close to 5,000 points for food / drinks from the Stay.