This has finally been resolved. The agreement was a program licence agreement and not a developer program enrolment although this was being flagged on developer.apple.com. I instead had to log into appstoreconnect.apple.com. There it was flagged as a program licence agreement. On clicking this I was redirected back to developer.apple.com where developer program enrolment notification was replaced with program licence agreement. Not very intuitive but glad it was resolved. Thanks to Mathew from developer support for his guidance.

This has finally been resolved. The agreement was a program licence agreement and not a developer program enrolment although this was being flagged on developer.apple.com. I instead had to log into appstoreconnect.apple.com. There it was flagged as a program licence agreement. On clicking this I was redirected back to developer.apple.com where developer program enrolment notification was replaced with program licence agreement. Not very intuitive but glad it was resolved. Thanks to Mathew from developer support for his guidance.

Enrollment ID is UUSMLPLV94

Enrollment ID is UUSMLPLV94