Translation of kontaktieren

I really worry about the health of obese people, especially the ones that I know in person (friends, relatives), because it is well known that overweight have a higher probability of heart attack.
I took my backpack and looked for a minibus that would take me a little outside of the town to a small settlement called El Panchan. I arrived there very early and no rooms were available yet.
Usually I do not care too much about not getting change, but when you pay a 3 dollar ride with 50 dollars, you do actually expect change. We stood there for a while and neither of us knew what to do.