I've only dealt from Rockauto a few times but several forums are showing 866-762-5288 as a contact number. Press 0 then 3 then 4. Maybe this doesn't get a real person?
Also, several Amazon orders that I've placed were actually sold by
https://www.autopartskart.com/ . I've ordered from this company directly to save a few more $$ and I've had good luck so far.
I'm watching prices more closely lately. I ordered a set of step bars from Amazon for $130. The seller left a copy of Amazon's invoice in the box. Amazon paid $49!!! I was a little upset about the amount of markup.