Hi there, I'm trying to book for Tune hotel (for the 1st time) and I'm confused when comes to 'add on' part. If I'm staying for 4 nights, the add on for 'air conditioning 24 hours credit', I should choose 1 (for 1 unit) or 4(for 4 nights) for the quantity? The towels & toiletries if I put '1' means they'll change/replenish daily or no?