Thanks...Sorry I am not so sure about your first question, did you only pay 100$ or did you pay your sponsor fee and permanent residence fee but only paid 100$ for work permit?
For Question 2, I would recommend waiting until they ask for it because if it expires before you get a decision on your application then you will have to redo again, which is a big waste of money. But it's your decision in the end.
Question 1. I paid sponsor fee + pr fee but 100 OWP. What I can do? I need to pay 155 but I don´t know how send the fee to CIC.