Hello Sir/Madam, I would like to participate in your design project.
Could you kindly make payment option show as 'Payment Guaranteed'.
(I believe, by selecting and changing the option from "refund" to "committed")
Firstly, for you to receive a wider range of quality design options. Secondly, stating you are committed, serves as a reason for me to commit/dedicate time and effort to this project. Thank you.

Regards,
ian@iD3

Thanks for the helpful feedback. I think I will change the payment option.

With gratitude,

Dear Madame/Sir,
I have submitted my designs.
I know you are busy but, would you mind to give me any feedback?
And please tell me if I am on the right track.Thank you !

Best regards,
Coco