This makes me smile, regardless of you phoning/texting and emailing the planners, it is your duty as the driver to ensure you are able to get to a safe place and take appropriate breaks as required by law.
Therefore as the driver you have to make decisions based on staying within the law regardless of what the planner or office tell you what to do or in this case don’t.
If you are running out of time and no one gives you clear decisions then pull out and get back to base within your hours, or park up and night out and have the correct rest simple as that really.
As for going against the planner as long as you have informed them of the problem there is naff all they can do, if they sack you you would likely win a tribunal.
You are the driver and you have to take responsibility for your actions, removing a card etc is quite frankly stupid as the tacho head still records everything.