Story happened years ago, and for some reason it popped into my head and was wondering if it was muttar.
I was in a store, (Sears, I think) looking for a dishwasher. I may have had some coupon for free delivery and setup. Anyway, the salesperson comes over to me, and offers his help. I basicly knew already which model i wanted, so he said he would ring me up.
When he got to his cash register, he told me that on Saturday, they are having some sort of sale, so it pays to come back in on Saturday.
I explained that I could not do that. I guess I didn't explain well enough, because he then said that I can just call in on Saturday over the phone.
When I explained that I could not do that either, he offered to jot down my CC#, and he would put it through on Saturday. I said sure, and that is what happened.
Question: Is that allowed or is it doing schorah on Shabbos?