Am experiencing the same thing. I called endlessly. I walked in to their office too, but they gave me the same number.

There is a policy of 48hrs grace period to change your tickets before departure but i told the counter noobs that i have been calling for the past 48hours but no one is attending to me.

I am losing my RM1440 GoHoliday package by the minute now as i am schedule to fly tomorrow.

Sawadikaap you Thai noobs!