just noticed on passport that  immigration gave me 60 days instead of the normal 90 days on a vaild non O multi entry (US passport) but left the TM6 departure card blank for "until" and did not sign or initial it. visa validity has several months remaining.

 

 

just go back to the airport and they  will change it or to an immigration office, BUT dont wait

I ALWAYS check before i walkaway.   have caught them 2 or 3 times giving me wrong dates

• You can get the error corrected at an immigration office.
• The stamp on the departure card isn't really important, all that matters is the stamp in your passport.

The officer picked up the wrong stamp and did not notice his error. You can have it taken care of at an immigration office.

They seldom put the admitted until date on the departure card. Mine has no admitted until date on it on the entry stamp.