I joined this - but the address I sent the BTC from, is different to the address I created to have the Tokens paired with.
Is this going to be an issue? I own both addresses (the sent from, and one I paired with) so I'm assuming not?
If you send BTC from address A, then you will get tokens on address A. For Bitcoin, it does not matter which address you put into the dashboard (although, obviously it is recommended to input the same one).