Help with bulbophyllum in horrific state!

[H.D]

well , when i went to unmount it, i basically did not have to do anything. the wood and the roots had mostly rotted away near the bottom. before repotting, i gently rinsed the whole thing, and lik 70% of the older roots just MELTED away. also the bulb in the bottom had a huge black gash, so i cut it off too. i am NEVER buying orchids from that place again.