The Print Beat Store policy dictates that Beat Coins can not be transferred between accounts.

Here's why:  

The Print Beat store is intended to be fun, and reward each of our loyal users for their loyalty and for constantly trying to improve. 

We want our users to make the most out of our tools (such as the weekly reports and Insights), and give us feedback that helps us improve and provide our customers with the best possible experience.
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We also need to ensure that all users have an equal opportunity to enjoy the store's offerings, and to avoid abuse of the Coins system (including avoiding multiple accounts for the same person).