Brewers Fayre bonus club-totally free birthday meal

Ok its my birthday soon so started getting the birthday offers from various companies in my e-mail account.

'Free drink' this,'free bottle' that, are all in my inbox but all mean buying a meal to qualify.

One offer that stands out in this mass of offers is the Brewers Fayre Bonus club birthday offer.

Why?

From the e-mail:

"
Happy Birthday
(My name)
Treating you to a free meal is our way of saying “Happy Birthday” to you as a Bonus Club member.

All you need to do is show us the code below along with a swipe of your Bonus Club card when you order"

Most that do this require another meal to be paid for.
But if I am reading the T&Cs right I could walk up and get a free main (Order tap water with the meal) and simply walk out having had a free main:

T&Cs


1. This voucher entitles the Bonus Card member to one free main meal or Chef’s Counter. 2. This offer excludes Snacks, Breakfast, Premier Inn Meal Deal and any Set Menu including Christmas Day and Festive menus. 3. Only one free meal per party is redeemable on or between the dates shown on the voucher. 4. Vouchers must be presented with a corresponding Bonus Club membership card at the point of payment and can only be used once. 5. Only vouchers with a valid voucher code will be accepted. 6. The voucher may only be used in Brewer’s Fayre restaurants. This voucher cannot be exchanged for cash, is non-transferable and must not be reproduced, copied or varied and all rights (including copyright) will remain with Whitbread Group PLC. Only undamaged and valid vouchers will be accepted. 7. This voucher cannot be used with any other offers or promotions including the Whitbread Privilege card but can be used with other Bonus Card points based vouchers. 8. All rights remain with the promoter who reserves the right to withdraw the offer at any time and without prior notice and their decision shall be final. 9. For additional terms and conditions and FAQs please refer to brewersfayrebonusclub.co.uk/
.