Everything Neon Terrible service & products, and they won't give you a refund after you send the product back Boca Raton, Florida

I ordered a simple lighted window sign for my store.  After numerous calls to find what was delaying the completion of my sign, it finally arrived but was the wrong color.  So, I had to wait another extended period of time for them to make and send me another sign.  They indicated they had a new manufacturer in China, and were having some production issues. 

After hanging the sign in my window, it stopped working after 2 weeks.  The customer service rep indicated they were having problems with the transformers being strong enough, so they sent me a larger transformer.  This one also burned out adfter 3 weeks. 

At this point I asked for my money back, but was told I had to return the broken sign first.  I sent the sign back 2 months ago and have yet to receive my refund.  And now I can't even get the customer service people to answer their phone or call me back.  All I get is an email saying they will check with accounting.