@Majida ji,
When you are a vk user you do not require Reiki attunment you can use VK for self/others for any Reiki healing session.
With VK you can directly use any Reiki symbols/master symbol without any other attunement. VK can mimic any Reiki healing therepy and symbols energy in simple request, you can charge water with reiki session or symbols also with VK.
If you do then it need Reiki 1,2,3 then masters, advanced, grand masters levels in a single type of Rieki. There are more than 100 types of Reiki therepies and then levels.
Guess how many money and time you will spend to do that.
I feel you misses to read about @"Sharat Sir-VK Inventor" ji, he is master of the masters and after learning and practicing more than 55 Reiki and healings for more than 20 years of experiences and practices VK is attuned by Divine Blessings on them.