Question:
Hi may a person guess a promo code for a discount while checking out on website (non jew owned)?
Thank you
Answer:
If the person is not entitled to this promotion we may not try to guess it, and to get that promotion is simply stealing. Needless to say that we are not allowed to steal from anyone, Jew or non-Jew.
H-shem should send you ample parnasa, in a kosher way.
Best wishes