How to deal with Dyson’s terrible customer service?

I bought a Dyson Purifier Big + Quiet on March 11.   The order confirmation said: "Shipping within 3-7 business days, plus processing time."  It still hasn't shown up and this is almost 2 months from when I ordered it.    I have tried to get help from Dyson from both live chat and phone on multiple occasions but haven't been able to get anyone who could help.  I have gotten 3 emails from them over the past 2 months, each saying my expected date for my purchase had changed and I should expect it in 7-10 Business Days.   It still hasn’t arrived.  Today I finally got someone on the phone who told me he couldn’t find my order.   When I told him I wasn’t hanging up and didnt trust him to call back or email me a response, he put me on hold for a long time and spoke to the warehouse.   He said my order was shipped and should arrive tomorrow.  I’ll believe that when I see it.   Is there any way to get this company to treat its customers better?   I am appalled at how hard it is to get a product for $1,200.   Any reply Dyson?  Any compensation for frustrated customers like me?  Do you even care?  If so, it doesnt show.