Leave your name and your number

Himself and moi; we have a problem.

Tonight we lifted from the board... vet's appointment; dentist appointment; gas man's phone number; dead lotto ticket; a four digit number i believe to be a PIN number but for what we don't know ....

And we were left with this....

31st. 9;55


Monday is 31st....

Neither of us have a clue who is supposed to be where ...


Any ideas?