I find it hard to believe that this makes sense when multiple machines new and refurbished experience issues like this. There are plenty of cases out there where people have issues many of the same type regarding inconsistent cutting and/or not cutting at all. When the refurbished machine shows up with missing screws, broken brackets etc. it is very hard to blame this one a delivery company. That is clearly a quality control issue and has nothing to do with anyone once it leaves the factory/refurbish center.
I appreciate your response, however the fact of the matter is that they clearly have some quality issues and it shows when multiple machines have to be sent out to attempt to rectify an issue. When the original machine was working it was great, when the failures started and then the refurbished machine showed up with similar issues and then again a new machine showed up and is now not functioning you can hardly put any of this blame on anyone other than the company producing the sub par product.