FLY is FUN

I've a Galaxi SIII and I downloaded the app from playstore. the system sent me also the gpsilsvor.pdf with istructions. Nice! But there is a problem I receive this pdf file 5-6 time per day now I've the gpsilsvor-38.pdf (38 download!!!!). I've also deinstalled the app from my SIII but the pdf file dowload take place. Also now that I'm writing this post. Please , please STOP IT IMMEDIATELY!!!! ... now I've in my Galaxi the gpsilsvor-39.pdf ((

Here is code for downloading PDF:

public boolean onOptionsItemSelected(MenuItem item) {
Intent i;
switch (item.getItemId()){
case R.id.userguide:
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.funair.cz/downloads/manuals/gpsilsvor.pdf"));
startActivity(browserIntent);
break;
...


There is no loop