Bests & Worsts Reviews from Amazon

I bought this item for my birthday and was VERY excited. I read all the reviews, and I was actually looking forward to the "roughness" level people spoke of (I am on my feet ALL day and was really in need of something.) I received the item a few days later. I was impressed with the size, it felt very industrial strength. I plugged it in....and it never came on. I moved power sources...and it never came on. I was so disappointed. I looked in the manual for other troubleshooting techniques, there were none. I contacted the seller "Shining Image" and in their email response they told me to "take apart the machine and check for loose wires".....what?! They said after I did that, if it still didn't work, then they would send me a pre-paid shipping label. I emailed them in response to tell them I was not an electrician and I would not "take apart the machine." I immediately opened up an A-Z claim through amazon, considering the company basically asked me to void any kind of warranty by taking it apart. The company emailed me back and sent a return shipping label and asked me to cancel my claim and that once they received the product, they would evaluate it for completeness and determine how much I would receive on my refund. I sent the package back the very next day, but left the claim open. I received ANOTHER email that stated they noticed the package was in transit but that they would be withholding the refund until I canceled my A-Z claim. This seems highly suspicious. I contacted amazon customer service who informed me I should notify the Marketing Dept Investigative section. I sent them the email traffic between myself and the company. I have also emailed Shining Image to let them know I would be leaving my claim open until I felt I had reached a closure point regarding my refund. Shining Image continues to seem apologetic for the issue in the email, but their practices are highly suspicious. I definitely do not trust the support of this product