Bob,
im not sure they actually have coupons. I’ve found out that plenty of company’s have that web page option but never release codes. And when I bought my last system from them I tried in vain to get a code. The system was like $900 and I wanted to try to save something. They did not have a code at that time. I called them and got a percentage off when I told them I was a member here. But I had to call and whine to get that. Good luck and hopefully they changed their policy by now. Never be afraid to call on the phone and ask- worse they can say is no.