I just ordered some things yesterday from Rock Auto. I believe the discount code goes in the box that is "how did you hear about us" or something like that.
That's what I thought. (I couldn't remember the exact name)....
That is where it goes. Keep in mind some codes can only be used just once.
(I.E.) Some times a code may have been used and then when shared the code that is no longer good.
Other codes are good for a time period and can be used multable times by as many as know the code.
I have had both in the past.
