Hi,
Please extend the timeline.
Thanks,

Hello,
Thanks for the invite, but the time line is very short to submit my design. Kindly extend the timeline so that I could submit my design.

Thanks & Regards

Hello, I request you to please increase your time duration of project.

Hello Project Holder

Pls provide your valuable Feedback for the submitted designs so far.

Thank you

Hello Project Holder

Pls provide your valuable Feedback for the submitted designs...so that we can move ahead

Thank you

Since you have increased the deadline by quite a bit and now even the status of the contest is "Open", Some feedback on the previous design will help with newer submissions.
Thank you !