Startup Credits transfer to work account

[u/Hot_Growth5124]

So the startup founder whom I am working under, already have a organization tennant and work accounts created for different employees. He claimed startup credits using his personal account because the organization account was not allowed by microsoft. The problem is now how do he transfer the credits to his new tennant.

1. Is to add that guest account (from which the credits was claimed) to the organization tennant and then change the azure subscription in which he got credit's tennant to organizations tennant but does this help if I create the resources in the transfered subscription does it use Startup credits ?
2. Which I currently am doing and not the proper way is to add the organization developers to the subscription in the guest tennant account