Hi Nesa, such a great pleasure that you have enjoyed your time in Cuba, and your stay in our place. We apologize because the little inconvenient with the baggage and the pick up of your friend, but your details about your arrival before the ruled check-in time, asking for leaving the baggage in the house, were giving with only one day in advance. Due to the short time in advance, probably Marta didn't see the mail on time and that is why you needed to wait a little bit and the same for the pick up. Concerning the price for the pick up, usually all the taxis in the airport have this tax for pick up, then for the take off is a little cheaper, around 5 to 10 cuc cheaper as you already said, but any driver want to pick up anyone for less than 30, because the time of waiting for the passenger in the airport (it is time consuming).
In any case, we are pleasant that you had a great time, you are very welcome to come back anytime you like,
Ana and Ernesto