As far as I know Bitcoin is a digital and global money system currency. It allows people to send or receive money across the internet using Bitcoin wallet.

Is it possible that they will unbanned the account?

In order to start bounty
1. find a good ico
2. Fill up the form
3. Follow the rules in posting a work.
4. Be active until the end of ico's.

Why account banned?

Why ether wallet is important in Joining some ICO?

HELLO PO,,
KABAYAN PAANO PO BA NATIN MAGAGAMIT ANG COINS.PH SA PAG TRADING.

can anyone name countries where bitcoin is legal?

tulad nating mga newbie ang kailangan nating gawin ay ang magbasa dito sa forum para mapalawak ang ating kaalaman tungkol sa cryptocurrency. step by step malalaman din natin ang pasikot sikot dito para kumita.tulad sa mga nababasa ko bilang newbie kailangan muna natin makilahok sa airdrops basta my account lang tayo sa telegram,twitter,gmail at facebook.Kailangan lang natin sipag at determinasyon upang tayo ay aangat.

 im joining more than one bounty campaign,  Earnings also depend on your rank and number of friends, tha higher the rank, the many number of friends or followers the higher reward you can get.

It's allowed to join more than 2 campaign as long as you can manage to do task correctly and follow the rules appropriately inorder to earn tokens as a reward.