audi a8 water leak
 

please help with my problem.i have serviced my audi couple days ago which included aircon gas refil.after it has been done passanger and driver side has been continuosly flooded by tons of water.my friend is gona try to do unclogging the a/c evaporator drains,but is this only reason of water leaking or it could be something else?i am possitive that it is aircon fault.please let me know someone if is this only reason for water leak or it could be something serious...i am traveling 4000 miles within 2 weeks i need to get sorted..please..