What are the speakers discussing?

M: It’s getting close to the end of the year. We should do something to show our appreciation to everyone who donated money this year.
W: Last year, we sent calendars to anyone who donated more than 50 dollars. Why don’t we just do the same thing again?
M: I don’t mind. But did you get any feedback from the people who received them?
W: Yes, they seemed quite happy with them, but the shipping fees were high due to the size of the calendar. I’ll call the postal service to check how much delivery is going to cost us. I heard the rates went up this year.
47.What are the speakers discussing?
48.Why does the man say, “I don’t mind"?
49.Who does the woman say she will contact?