@vfrmedia @aei 7-11 in the US is doing it. When I say "No" they press a button and I still get the "discounted" regular price instead of the higher price. On a $7 purchase the difference is usually $1 or more. Occasionally I have found a 7-11 that still charges me the higher price for not putting in my phone number and being part of their "loyalty program" and I NEVER go back there.
These fucking loyalty card/loyalty programs caught on in the US in the late 90s. WinCo has no such thing!