AWS promotional credits are non-transferrable. The only way for the OP to "donate" those credits is to create an AWS Organisation and allow the non-profit crea

AWS promotional credits are non-transferrable. The only way for the OP to "donate" those credits is to create an AWS Organisation and allow the non-profit create a sub-account to use the $10k credits. But the OP has to be vigilant to ensure that they do not go over the $10k otherwise they will be on the hook for any additional charges that are racked up.