[mothered]

Heres a tip: be prepared when callling, as in what you are going to say what is wrong with the drone

Absolutely.

Communication Is done In real time, hence you cannot take back what you've said.

Also if you find yourself in a jam with a hard nose CS employee, pretend to get disconnected from the call

And be sure to do It while "you're speaking".

There's no suspicion when the call Is terminated on your end of the conversation.