I got it, tore it apart and NO FUSE and it failed with earth on the pat tester despite it being connected up.
All nicely packaged in bubble wrap and placed in a jiffy bubble wrap bag.
Failed earth continuity.
I have not changed anything ont he pat tester other than the length but I plugged in another similar sized iec cable which passes earth continuity with no problems so it is not that.
On tearing it apart below the earth cable from the plug to the IEC connector appeared connected up until I cut them off.
It looks like copper but when I twist the conductors they seem to spring back straight.
It has a metal kind of look but tinted with copper after cleaning it.
I tried it on a cooker flame and it still didn't fall apart.
I was expecting aluminium.
Maybe it could be some other metal or steel.
No fuse or "CCA strands acting as a fuse" in the plug or the IEC connector.
Maybe they mean the whole cable as the fuse.
I knew what I was going to find.
Maybe I should report them to the trading standards for selling non safety compliant goods and they can claim ignorance and misinformation all they want.