I wonder where you live that that happened. In America you're expected to say no, cashiers don't care. They don't get paid enough to.

No point asking them to justify why they have to ask, they probably don't even know. Just say "Sorry, I don't give that out". I've never had a store push back after that - they probably get it all the time.

I'm a casher in the US of fuckin A and I can assure you that we don't care on a personal level what you do. If someone not having or wanting to enter a phone number at the register is the weirdest customer thing that happens in a shift then it's the most relaxed shift of my damn life.

Why don't you just lie ... Each time a different name surname email address physical address phone number ... Yeah sometimes it's Mandatory to use a real address for delivery purposes just put a random name in and add a post-it on the doorbell saing something on the line of leave packages for Crudelia demon here please. Temp mail for most discounts is enough... The test cases in which they do not only ask for your phone but also want to verify it it's pretty slim ...

This is sadly very common where I'm from, except you don't even get a discount from it. I've taken to just politely declining, since I'm sure the person working the cash is probably pressured to get people to give their personal info.

"And can get your email?"

"No thank you"

"I need your email for the receipt"

"I appreciate it but no thank you"

It's a slight non sequitur while still being polite. Saying "no thank you" when someone is pressuring you works well in many situations.

I do this all the time.

"Can I have your address?"

"For a haircut? No, will it let you skip it? Ok good do that then, thanks. I don't need 50 new mailers a month about damn haircuts, you feel me."

Problem solved, they always just say "yeah I hear that."

Every time this happens to me, the clerk/cashier just shrugs and is like, "okay". They get it, but are obligated to try anyway. The best you can do is be polite.

"Would you like to donate money to us that we pretty pretty promise will go to some vague charity while we reap the tax benefits? No? Are you sure? Fine, we'll just ask you next time (regardless of your answer this time)."

Everyone's approaching this from the privacy aspect, but the real reason isn't that the cashier thought you were weird, they're just underpaid and under a lot of pressure from management to try multiple times and in some cases they even get written up for not doing it because it's deemed part of their job. They hate it just as much as you. Same when you try to cancel your cable subscription or whatever: the calls are recorded and their performance is monitored and they make damn sure they try at least 3 times to upsell you, even when it's painfully obvious you're done with them.

Just politely decline until they asked however many times they're required to ask and move on.

Stores will never respect your privacy or data, so you have no obligation to respect a corporation’s expectation of truth.

Just have memorized fake data ready for bullshit like this, say it when asked. Then the retail person who cares even less than you about it (but is forced to pretend they do, in order to survive) can get to their break faster. Win win

(Your Area Code) 867-5309. None of the younger store clerks know the song reference when I give them this number. But I get chuckles from older folks in line behind me

I had this experience once in an Ikea, of all places. I calmly told the clerk that according to local laws (which I cited), it was illegal for them to demand that information from me (phone number and post code) to sell me anything, and if the computer wouldn’t let them do it, then they should call a manager for an override.

When the manager came, the clerk said “this person refuses to give me their info” — to which I added, “your computer refuses to comply with the law; please override and then notify HQ that they are in contravention of the law and liable for significant fines.”

The next time I went in, they still asked me for the info, but the clerk was able to override. I suspect they just put in fake info for everyone who refused to supply it.

Maybe just an awkward sales agent, or they thought you were mad at them for in their mind trying to help. I decline phone number and zip code all the time. Also been using someone else's phone number at grocery stores for years -- started by mistake. I don't care about accumulated points or whatever but discounts at grocery store are pretty significant for me.

But I understand your frustration in general. Keep up the good fight :)

I stood ready to pay and then the cashier said "now I just need your phone number and you can pay". Hold up. What. I did not expect that, I honestly had a burst of anger inside me (never gonna take it on a cashier, they are just doing their job). I asked nicely why do I need to give my phone number and I was told that to register me as a member so I can get the discount.

"Sure thing, It's +XX 111 222 3333" Just give them garbage.

When I worked retail, I never asked for phone or address or anything. If they volunteered it, I’d do it, but I never asked. Management talked to me about it several times and I just kept not doing it. I think they kept me on in busy times because I could blast through any line of customers faster than anyone else (I wonder why 🤔)

I think your misinterpreting your own social anxieties as being made to feel like an "outcast".

The fact of the matter is it's just not normal to question why a store wants your phone number and I'm sure the cashier was taken aback by the whole situation.

Convenience, not privacy, is the norm. There is going to be tons and tons of awkward social interactions when you go against social norms. Accept it and be proud your advocating for your privacy.