Just to be clear.
You arrive at check in with overweight bags an hour before departure at 6.40 am?
Did you realise Singapore require you to check in with bags 2.5 hours before departure?
Once checked in you sit down and wait for your wife to go back to the car park. (How long did this take?)
At 7.00am (now 40 mins before departure and Singapore's closing time for flights) you go back to the desk and enquire about cancelling, is that right?
Did you realise the flight would have been closed at this stage? Di they tell you the flight was closed?
Now the bit I am not sure of ,you variously say "to my surprise", "whilst discussing my bags suddenly appeared" and " i heard my luggage on standby and located and brought to the counter in a minute or two" in relation to the bags, which was it exactly?
At 7.03 am (37 mins before the flight) your tags were removed.
The timing you set out above suggests to me you were cutting things very fine but putting that to one side what I dont get is why did the bags appear suddenly if you hadn't indicated you didn't want to fly? Why were they located?
Also you said the supervisor planned the situation, how could he anticipate your decision to enquire about cancellation? Once tagged and you had your BP what could he have done to anticipate your decision?
I find this very confusing.