[graviton1]

There is no hard & fast rule for it. In this part of world a few companies use a very specific way to execute their delivery & return thingy which can be exploited here very conveniently rest their return pick up process & little bit of luck factor also comes into play.

oh so its like FTID and LIT method i suppose?

I prefer to not to opt to ftid & lit method. Simply because other methods here has higher success rate for me & mostly ended up in my favor so far..

which other methods?