There's no blame to be placed on FluidOne there. That company did a RedHotAnt / E7Even and weren't paying their bills. FluidOne aren't going to supply them for free and contacting end users would've been extremely problematic.
There was an update at the URL after your post with a response from net365 - if their account is correct then FluidOne seem to hold a good amount of blame - but I wouldn't want to speculate as to whether the account is 100% complete and accurate.
According to the latest update from Fluidone, Net365 did not keep up payments on an AGREED payment plan after Net365 were having REPEATED payment issues. If what Fluidone are saying is true, then you can't really blame them for cutting off service, there has to be a line drawn somewhere.