Considering to change my name!!

So I know that I already posted something today but I need to tell you this:

For school we have to order a school jacket and on this jacket is our name. We are not allowed to wear any other jacket if we are wearing our school uniform. So I ordered it two weeks ago and went to the front office today to get it.

The Jacket was there bit they spelled my name wrong so instead of "Koch" as my last name they wrote "Kock"....

I don't have to say anything more except of that since I am here some people pronounce my first name as "German"... so in the end I am "german (c)ock" or what??!!