Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Dear Clavel, Christiane (MTL),
If the reservation was purchased under Pay-As-You-Go (PAYG), the reservation owner can typically cancel the reservation and receive a prorated refund. You can review the guidance in How to exchange or refund an existing reservation and follow the steps to exchange or request a refund for the reservation, if eligible.
But if a reservation was purchased under the wrong CSP, a CSP customer cannot directly exchange, cancel, renew, or refund the reservation themselves. Instead, these actions must be performed by the CSP partner on the customer's behalf.
I hope this helps. Welcome to share any updates when you have time if you need further help on this issue.
Thank you very much for your valuable time and your cooperation.