Dennis is second to none in terms of technical support. In my case, he has always responded within the same day of my inquiry or the next day. Never longer. Response to on-line orders placed directly with Z Stuff Express is another situation. It is my understanding that Z Stuff Express is run by a relative (daughter, daughter in law?) who apparently does not take the business seriously.
Like others have suggested I strongly agree that orders should be placed through Ross, Gargraves or another reliable retailer.