How do I know if I have a Vitamind D Receptor Issue?

In the video Lyme Disease Blocks Vitamin D Absorption by 8000%, Dr. Berg discusses vitamin D receptor blockage causing deficiency and the challenge of identifying the receptor issue through a blood test. There are specialized tests that will determine the vitamin D receptor issue. A couple of options for these tests are:

True Health Labs Vitamin D Receptor - https://truehealthlabs.com/product/vitamin-d-receptor/ 

OmegaQuant Vitamin D Test - https://omegaquant.com/vitamin-d-test/