Just back from using the Metro spend 95Cash AM get 25AM (STB promotion coupon). The cashier definitely entered the PLU code (she did it twice). It appears on the receipt as Marketing Promotion and I was charged .05, the next line is Marketing Promotion and the .05 is removed. The receipt shows the use of my 95Cash AM but the bonus 25AM doesn't show on receipt (it never does and usually posts to my account within two weeks).
Just thought I would share my experience, hopefully someone else has the same experience and we'll know that is how Metro is handling this promotion. I hope it works because it's my #7. Going to do Foodland and Sobeys spend 95Cash AM next week for my "in case" coupons.