Just bought a 2m section of flexible tube for a gas stove, and the sales clerk asked first for my phone number, to which I replied “I don’t have one”. Then she asked me for my name, to which I replied “I’ll pay in cash”. She then insisted it was so “the cashier will call you by name”, to which I replied “I’m not giving you my name, I’ll pay in cash”. [Edit: she apparently got a bit upset when I refused to give info, but ended up entering “no name” according to the receipt]
Am I wrong for not wanting to give personal data for an item paid in cash, in person? No other hardware store ever asks me for my personal info.


Thanks. Why would that give a discount, though?
867-5309 is from a popular song in the 80’s. The song is Jenny, by Tommy Twotone. The lyrics are about seeing some “For a good time, call Jenny 867-5309” graffiti on a dive bar bathroom stall. The singer, being drunk and lonely at the bar, decides to call the number on a whim. Since the song was popular and lists the digits as part of the chorus, it is easy to remember… Memes were a thing, even in the 80’s before the internet. And basically any GenX person can recite the number, even decades later.
Which means it is commonly used as a fake number wherever you can make a loyalty account with only a phone number. So if the place has a loyalty/rewards system, the popular fake number probably has real rewards to be redeemed. I can usually get a few cents per gallon off at the gas station, for instance. Because with dozens of people using the same phone number all over town, the fake accounts quickly rack up loyalty rewards.
Sometimes called the Jenny Discount by those who use the number. Worst case scenario, you give the store a meme number and nothing happens.