Thank you all for your input.

I'm asking for a refund of the difference.

I will update all when I hear back.

A few weeks ago I ordered a Canaan Avalon 1246 miner from CoinMiningCentral.  I went with the top performance model available from Avalon and paid a fair price for it.  Fast forward a bit and I received my order- sort of.  I received a Canaan Avalon 1166 Pro instead of the 1246.  CoinMiningCentral is giving me a story that the manufacture builds them the same, same hardware, etc. and the current 1166 Pro performs at the same hashrate as the 1246 I ordered and paid for.  I call B.S.  At the time I ordered the price difference was around $500 USD.  They've acknowledged I was sent a 1166 pro but don't see why I am not happy.

What is your thought of my situation?

Sam