Just activate the offer, but don't buy.
Or do not accept the offer, and then give your reasons.
Ie, if you get something like 10x bonus points on pork, ie, 1 normal and 9 bonus, click the don't accept, and say/write you get gout/allergic from eating pork.
You might get the chicken offer instead/general any meat purchase for bonus points.
In a while you might get "buy $3 of bananas and get 150 bonus EDRewewards points"/or white grapes, buy more than $3 and get 150 points.
Do that more than once, or twice, if you are lucky. you might ping a $45 spend at BigW for 4.000 points as I got a while back.