Bonus Rewards trap

I have been shopping at Stop & Shop for years and spend thousands of dollars there. Lately, I do not get my bonus rewards. In particular, the spend $140 and get 280 points. I activate the offers, and check out, but it does not show up on my receipt and I never get all the points they promote. I have inquired at both the courtesy desk and contacted the number they give you to inquire. I have had several instances investigated and received the points after providing a lot of documentation and waiting for weeks to get those points. Then it happens again and again. When you need the gas points, a