Translation of fix in Spanish

We wanted to take a hot shower but there was no hot water at all. We asked someone to fix it and he showed us that there was a heating switch outside the bathroom which would turn on the boiler.
Considering that the lake was full of crocodiles we gave in to their demand and bought a can of Coca Cola. It cost us two dollars, and considering Cambodia's wholesale price they got plenty of markup.
The next day we had to take the bus in order to get back to the airport in Calama. When we arrived at the airport was empty and no counter was open yet. We had to wait for 4 hours.