A local guy to me had this exact problem with ZZP after 3 PCMs failed. He threatened to contact the Missouri attorney General, and then I think it was Scott? got really crappy with him. This customer service is why I preach against ZZP's PCMs, and will continue to do so. He did eventually get a full refund, but they kept his stock one which I think is BS.

they've got some good stuff to offer, but PCMs are NOT one of them.