API ExtendRenewalDateRequest returns a 200 but does not extend

I have been trying to extend a membership that is about to expire in 3 days. I send a request through the api following the instructions on this page https://developer.apple.com/documentation/appstoreserverapi/extend_a_subscription_renewal_date

I get a 200 response with a body saying it was successful but the date is still the same both in the ExtendRenewalDateResponse and if I make a query to get the expiration of the subscription.

Hello, please file a Feedback Request ticket so we can investigate this for you. Then post the FB number here.

http://feedbackassistant.apple.com

Include in your ticket as much information as you can, such as the full request and response including headers.

Hello, I had filled a feedback and never heard back... https://feedbackassistant.apple.com/feedback/12456361

Still haven't heard anything back

API ExtendRenewalDateRequest returns a 200 but does not extend
 
 
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