Hello. First of all, thank you for your invite to the project. I appreciate your interest in my work.

I have submitted a pack of 7 designs for you, and I wonder, if your could guarantee the payment, for I have specifically put aside other projects in order to clear time for your brief.

Now, I know, that you might worry about the quality of end results. And I understand your concerns.

However, please note for now and for future reference: for any passionate professional, such as I am, knowing, that you put into work your heart and soul, but the project owner does not guarantee reward for your diligent and resourceful input - it's always hard to experience such an attitude and go on doing one's best.

I wonder, if you could guarantee the payment for your project. This will help me understand, that you are serious about making a mutually beneficial collaboration on the brief. Thank you. Have a good day!

Yours,
Lina