Can they exchange something without recipe just go back in my history in computer

I believe so..especially if you have the package with the item number

Yeah, what D said. 😶

Technically you should have a receipt in your email.

I think so

Any HFT receipts are stored under your phone number (that you're always asked for when you check out) that was given at the time of said item's purchase, but only for 90 days (warranty period without extra 1 or 2 year warranty purchase). It's against policy for Harbor Freight to accept returns after 90 days without extra warranty purchase. Every now and then, however, they may make an exception.