Google Adwords: New Promotional Credit System

As of May 31, Google will introduce a new promotional credit system for Google Partners.

Basically coupons as we know them will cease to exist and promotional credit will be applied to new accounts opened within a Partner's MCC when they meet the same conditions as previously required.

In the case of Argentina, it would be enough to just create a new account within our MCC and spend 100AR$ in the next 60 days to obtain 300AR$ of promotional credit.
The new system is valid for new accounts created as of May 31st.
But ... what do I do with all the coupons I have?

They will be valid until May 30. After this date, all new accounts opened within a Partner MCC will automatically qualify for promotional credit, without the need to upload a code.

What happens to the accounts that were opened outside of our MCC and then linked?

Something interesting would be to know if we can apply promotional credit to accounts that were opened by clients outside of our MCC and then link them.

I just asked that question on the Google+ page for Partners, hopefully they will answer soon: Link to publication

This new system for promotional credit seems much more practical than the previous coupon system, since we will not have to waste time requesting more coupons or implementing them in the new accounts.