How much time do I need to print a t.shirt?

Seriously?

Some time ago I decided that I wanted to print a top with a pic that a friend of mine sent me. So I went all the way to a shop where the guy said to me that he couldn't do the print in a top. The print was only possible in those horrible man white shirts that I truly hate!

So I went to another shop and this time a huge european known shop (Fnac) said the same. I was truly convinced that they could do the print on everything as long as I paid!

Prolly I could go to Germany to print the bloody top! That way I could wear it before my thirties!