Being friendly
And good manners is sometimes the best way. Long story involving my mother`s parking badge and a screw up by my brother. So I got on the phone-can you help please, OK I am not ringing to give you a hard time---oh yes that would be helpful etc.
Later today I got a call to say-`we have fast tracked your mother`s renewal`
They must have loads of applications,often folks getting angry-but there is a way you know