Can I use an electronic copy of my TM30 for visa extension and is the appointment fee separate from the extension fee?

Hello, I have 2 questions.

I have a on entry TR visa which I am about to renew. I have an electronic copy of my TM30. Can I print it out and use it for the extension request?

Also, I see that an appointment can be made for processing the extension. It shows Tourism Purpose 15 minutes฿ 1900. is that 1900 baht on top of the extension fee of 1900 baht ?

thanks