I left my previous company around June and transferred to Makati. After 30 days, my previous company is contacting me again asking me if I can still consider going back since it's hard to find a replacement. They gave me a good offer for the same position I vacated but would like to negotiate if they can just disregard my previous resignation and just continue my length of stay. I started last 2013.
If no, what's the disadvantage of resetting your length of stay back to zero?