Do Pre-Sales at Lancome Counter Help Out the Sales Associate

I started going to my local Lancome counter at Dillards a year ago and seem to have been claimed by the first associate who helped me, which is great, she is super helpful. What I'm wondering is that she'll text me when there's an upcoming gift with purchase promotion and ask if I want anything set aside/reserved for the promotion, which might be a month ahead of time. Are these pre-sales tracked by the store even though the sales don't get processed until the effective date of the gift with purchase? Basically, am I helping her out if I know I'm going to be buying something and then have that product reserved for those promotions? Or does it not matter as long as I'm purchasing from her counter?