Just my opinion, but, I agree with action, complaining you can't subscribe because you've chosen to not have the accepted methods of payment is you own fault not he companies so don't complain.
However, on the bike forum I go on, I have plainly advised every member to avoid my local dealers service dept as from personal experience, they are useless, why shouldn't I be allowed my say and to give my opinion to others, to be honest I'd say threatening legal action is more admitting that there are faults, they have no return argument so have to use the threat of legal action to silence people,