Translation of schaurig

What do we do about the numbers? I skipped them because I wasn't sure. Because it is possible that somebody wants to know how to say 15 in Spanish. He should write out the word as 'fifteen', not as digits.
True, I forgot the 'I' when I have copied and pasted the entire text field. I assume it is the regular form, isn't it? However, the formal form in Spain is a little different to what we are using in Mexico.
What do you think of the current situation? Like you, I am writing letters, emails and other messages. Tomorrow I will leave, then I will go to my friend in Spain, where we are planing a beach vacation.