Hi Ilir,

Thank you for your invitation. I'm sorry that I declined it. Participation payment is not the same with guaranteeing a project. You can attach a small amount of payment ($20) in the invitation :

http://www.designcrowd.com/help/article/can-i-invite-designers-to-my-project

Please invite me again with a participation payment, I look forward to work on your project!

Best Regards,
Elisha