Translation of invest in Spanish

We felt a little dumb and waited for the hot water. The boiler seemed not to work and we started to become upset. We asked the technician to come once again and he admitted his mistake.
I wish you a good trip, when you come to Germany in June! How do you long stay in Berlin? Please help me with my English, in return I will help you with your German. Wish you a nice day!
The bus left on time to the border town Tacna. Crossing the border was also an experience. We needed to show our passports about seven or eight times and were checked for goods three times.