Finally had the 253 AM post to our account... it was supposed to be 353 but the cashier screwed us out of 100 AM and it sadly was a "she said, he said" situation so AirMiles couldn't just add them to our account.
When the cashier takes your coupons and pops them into the register, refuses to scan them or give them back, you don't have much that you can "prove" to AM.
I am so angry about the situation I cannot be rational so next time we go, I am just going to take post-it's and arrange my cart for $100 purchases. If I have to send DH through a second line with his own $100 cart, well I hope I prove to that store's management that regardless of how inconvenient they make it, we are STILL going to earn those AirMiles!