I bought 2 Rockstar Focus drinks at Vons. They were part of a 10 for $10 sale. I also had a BOGO coupon for it. That coupon took off $3 as they were on sale this week 2 for $6, so one Rockstar rang up at $1 snd the other one rang up at -$2 (negative $2) and I was instantly approved for for the $5 rebate. Evidently the system just looks to see you bought 2 and it doesn’t care what you paid (or didn’t pay in my case) for them.
Fetch only counted one towards their buy 2, get 750 points rebate.