I am working on a Splunk cloud instance https://prd-p-f34a1.splunkcloud.com/en-US/app/launcher/home
and I want to rise a support case to access REST APIs port 8089 but its showing
"It doesn't look like you have any active cloud stacks. If you believe this is an error, please contact Support via telephone using the region-specific numbers found here."
while raising a support case.
Do you have entitlement to submit support cases? If not, contact someone at your company who does.
If you do have entitlement then contact Splunk at one of the phone numbers in the link in the message.