Wow... I almost did my training at (EDITED BY MOD)... Glad I went to (EDITED BY MOD then!
You should get your new school's instructor/CFI to help... I'm sure they can call them or something, or if the new school is in the strip, just walk down there and demand they hand it over.
There's no reason for them to hold on to it. Excuses like "You haven't finished your training" doesn't fly
