Rekordbox Professional - Paying for two dropbox accounts

I have subscribed to rekordbox Professional and have been really enjoying the workflow. 

BUT I thought my personal existing Dropbox account would be amalgamated into the new Unlimited Rekordbox Professional Plan. 

It seems I'm still paying for my old account through Apple. 

Is there a way to only pay for the one plan without losing my existing data? I'm sure that's what the set up guide said. 

Any guidance would be appreciated!