transferring playlists and songs from existing spotify account to new account through Rogers

[stephen01]

Rogers cellular (in Canada) offers 3 spotify accounts if/when you upgrade or add someone to your "share everything" plan.  We'd like to add my spouse to the Rogers plan and take advantage of this offer.  We each have existing Spotify accounts in which we have hundreds and hundreds of songs and playlists, representing hundreds of hours of work.  We want to switch to Rogers, who say we must cancel our existing Spotify accounts and start new ones, but we need to know how to save and transfer these songs and playlists to the new accounts.

Help?