Translation of Zahlungsnachweis

There is a small misunderstanding about the homework. I can do them, but they will be too confusing? I am trying to find the article from where I took the sentences in order to ease the task for all students.
I usually do not travel, and if I do, then only to England, when I visit my parents who live in a suburb of London. I can not afford to travel too much, because it is a very large expense.
I think you learn best through writing, talking and reading. Since I'm currently busy at my work and since I have no time for courses, I have no improvement plans for my Spanish studies.