VK is designed for auto healing for requested energies only for 30 min.
How did you test this beyond 30 mins….flow of energy for requested energy?.
It could be like this, that energy requirement was fulfilled in 30 min itself by that person or place or situation.
Or the energy was utilised in first few mins, the work was accomplished, the remaining energy sent upto 30 min , was still in the Universe to be supplied again when the same person or work required the same energy.