Stuck in limbo for AI graduate certificate

Completed 3 specialization out of 4 -

1. Computing, Ethics, and Society Specialization

2. Machine Learning: Theory and Hands-On Practice with Python Specialization

3. Foundations of Autonomous Systems Specialization

Complete 2 out of 3 credit for the last specialization - Natural Language Processing: Deep Learning Meets Linguistics Specialization hoping that 3rd one will be ready. But now they are not able to confirm when it will be ready. Alternate is to now spend for 3 credit to complete "Introduction to Robotics with Webots Specialization" which I don't really want since its not really something I want to learn also need to pay $1100 extra to complete additional 2 credit course. How are you folks dealing with this situation?