i need coins to change my name but i dont know how

i need coins for change my name i dont know kow if anybody know pls explain me

https://www.warmane.com/account > Services:
Select realm > Chaarcter > Currency: Coins > "Character Rename"

It costs 5 coins.

How to get coins?
https://www.warmane.com/account > donate

no i cant donate is there any way i can?

a friend/guild member can gift you Coins

can i have coins with gold?

because i dont have any guld

You can get coins by selling gold through the Trade system but to be able to use the Trade system you need to donate first.