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Re:Google made it nearly impossible for users to keep their ... by Tarragon on Saturday May 29, 2021 @04:25PM (#27328010)
You don’t have to give them the points card.

Also, I know an engineer that was inside a monstrous grocery chain many years back. Back then the payment and loyalty systems were separated by technical measures and firing level policies. If you used a CC without a points card they were not able to associate it to any kind of account.

Obviously the CC processor could but they didn’t get a list of purchases.

Re:Google made it nearly impossible for users to keep their ... by twhb on Saturday May 29, 2021 @06:59PM (#27328972)
If you use the same credit card at walmart.com and in a physical Walmart store, then your itemized in-store purchases will show up as orders in your walmart.com account. This is without providing any other form of ID.
Re:Google made it nearly impossible for users to keep their ... by nullwarp on Saturday May 29, 2021 @07:57PM (#27329327)
home depot is the same way, i bought something online on HD once and one day went in the store and bought something with the same credit card and the emailed me about my in store purchase.

i never logged it or provided any other information than my credit card swipe in the store but they tied it to the account i had on homedepot.com