macbook pro keyboard letter G always automatic ...

When I type G button with my MacBook keyboard is always double all the time.

I went to check at iCenter (Central ram 9, Bangkok, Thailand) after checked they said my Macbook pro has that condition that I assumed, have to be replaced only cannot be fixed. They also informed me that the spare part is cannot be shipped to Thailand at the moment due to customs process.

I've been waiting for weeks, It really bothers me to aware when I type the G button.