1-First of all, don't panic
2 - MAKE SURE THAT YOU GET SOMEONE TO WITNESS THE WHOLE CONVERSATION, ITS YOUR LEGAL RIGHT
3 - DON'T REFUSE a reasonable request - However I you feel that your LM request is unreasonable register this both in writing and oral dissagreement . BUT Agree with the manager that you are happy to absorb extra work IF YOU HAVE THE TIME TO DO SO
4 - If you genuinly can't absorb extra work and he / she insist that you can then you can accept the extra work under protest and threat of sanction ( make sure that this protest with threat of sanction is in writing by keeping a diary of these events , ask your LM to counter sign it; if he/she refuses to sign, note this too ! )
5 - take out the extra workload on delivery if forced to under threat of sanction/ duress by your LM
6 -While on delivery, If it is clear that you genuinly cant complete your duty and extra workload CALL THE OFFICE about 20mins. before your turn around time and seek a managers advice on what you should now do.
7 - If your LM suggests that you are swinging the lead then suggest that he comes out with you to test the duty (if your following RM delivery rules to the letter, then I would suggest that you wouldn't even get around your normal duty in the alloted duty time - REMEMBER always lock your cycle or van every time you leave it , dont read your mail as you walk, look at the next address then walk there then read each address before you post them through. p719 everything that cant be delivered as the rules dictate. knock and wait 2 mins before writing a p719 etc. etc. etc. - ask on these forums for all the rules )
8 - Register a complaint if YOU FEEL that you are being unreasonably harrassed by the management team - (REMENBER HARASSMENT IS ANY ACTION THAT YOU FIND OFFENCIVE E.G. if You feel that someone is accusing you of lieing and you are being truthfull you MAY feel that your being harassed and bullied by these actions ) / call employee support ( HELP )Report your harassment/bullying and record the time / date you did this.
9 - If RM's action is causing you genuine stress, seek help from your GP, take time off to recover if needed
REMEMBER , always keep a written / oral recording of all events and if your forced to sign any letter by threat of sanction then add the words "signed under duress" and "without prejustice" at the top
PS if anyone can add / ammend this post to the good , then please do.