This is new project for you, friendly Vietnamese.
I need to find one supplier who can provide products like [url removed, login to view]
So, your work is:
You can buy it via offline way ( on phone cards stores) or via online way ( online stores), but before you buy , you need to be sure that: They can give you both serial number and card number ( Some online stores only give you cards number, not give you serial number)
And then, sell it for me ( give me both serial number and card number), and you're paid [url removed, login to view] for one card values 500.000 vnd)