Thank you for editing the sample. I am going to send you a full text of the paper soon. Actually, I need a help with editing quite often so I am thinking not only about this paper but also about further contacts. 
Could you please clarify for me:
1. If something is not clear in your editing, would be it possible to discuss this with you briefly?
2. Do you do proofreading after my acceptance of your corrections? If so, how does it work and is it included in the price?
Thank you, 
Sergiy