Hi RaviTeja,
Thank you for trying the previous steps and providing the updates.
Could you please give it try one last attempt to check whether you have the necessary permissions. After trying these things, if you still face the same issue, please raise a support ticket regarding this matter in relation to your environment behavior while increasing the quota. They can provide an immediate solution for this particular issue, and your issue may be resolved more quickly.
If you need any other information, please let us know, we will always help as you needed.!
Also, could you please accept an answer and give it an "Upvote"? This would really help other community members who might be facing the same issue. By doing an accept an answer, it can reach other community member, and they easily get come into conclusion on this topic before proceeding anything on this service side.