Re: Chop chop chaps...
There s a lot of obfuscation caused by the fake contractors, but it's daft to pretend there's any chance of getting it wrong - unless, of course, you're dealing with fake contractors. The rules (which haven't changed) are very clear, and just because people are no longer able to get away with blatantly evading tax, they're complaining.
Based just on the scant information you gave, though, you're not a contractor, you're just another employee fiddling their taxes, so it's unsurprising you've run into trouble.