Registering device for second account

It's been a while since I played this game (last xmas), so I decided to give it another go a few days ago, though I didn't remember the information for my previous account, so I decided to make a new one, and started playing with it. However, I was able to remember the information from my old account, and I logged in all excited about getting my old characters back, BUT, it tells me that I am unable to register the device for the account as I already registered the other one, and well, can't receive things anymore.

So my question would be, is there any way I can play with my old account again, a way to register it? Or am I doomed for all eternity?

I used to play the game on an Ipod 4, now I play it on a Nexus 4, in case that helps.

I'd love to say there's a way, but sadly there isn't. I, too, wish there was a way to register multiple accounts on one phone.

Yes, you can't play the old account on that phone anymore. Your new account is the only account that will ever be able to play on that device. If you sell that phone then the buyer will be unable to play Fanta because you already "spent" the device ID.

If you buy a new phone then you could switch back to your old acct ofcourse.

However, if you have a computer you can transfer all your stuff to the new account by installing an emulator and logging in to the old account and trading with your new.

Google "bluestacks". If you have any questions just post, but it's quite straightforward.

Well isn't that a shame.
However, thank you very much Azaka, I was able to trade my Joachim to my new account guided by your advice, appreciate it.