bonds - confused [help pls]

Long story short, I accidentally purchased 3 bonds off of the runescape website, what is the process to getting them ingame from there and what would the process be to activate 3 diff accounts for 14 days membership

 

You would trade the bonds to the accounts you wanted membership on in Rs3.

Purchase them from players, the GE, or from the official Runescape website.

 

You'll find the bonds in your bank upon purchase

The bonds come tradable, so you can trade them to your other accounts. They do however become untradable after the first trade, so make sure you give them to the right account.