@Keat Campbell, It is like JF says. If you play say like 5 friendlies + 1-2 comp. games the amount of boosters will increase by "X" times. I've managed to collect this amount in just 1 1/2 month.

Don't recall how many friendlies I played, but it was 8 friendlies and 1-2 comp. games. Burned approx 50-80 green packs on PT as well.

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