Chatted with the rebate department and guy said printed email is fine for receipt. I questioned him and he says hes one of the guys who processes claims, so he knows.
Spent my $15 kohls cash yesterday. Last week they had free shipping no minimum, so I called and said I had issues with the website last week, so they made me a phone order and waived the shipping.
Also note, if you printed out the rebate form when you made the order, it had the incorrect sku for one item (pannini maker iirc), it was since updated.