Revelation Audio Labs (RAL) - Buyers Beware!

I bought a Revelation Audio Labs USB cable used (MSRP $800 paid $400) October 2024.  The RAL cable would not play music on my streamer but played on a laptop.  I have never had a USB cable not play music on my streamer prior to or after buyer this RAL cable.  Working with the seller and Brad at RAL we agreed to send the cable to the Brad in October 2024 to test, repair or return.  In November Brad told me it tested fine? but insisted he wanted to replace it free of charge.  Monthly communication has been very spotty with several no responses.  I have been very patient and respectful sending no demands or threats etc. just asking for shipping confirmation.  The seller and I have asked several times just to return my original cable that the seller has agreed to give me a refund.  Brad has responded 3 times since January 2025 that he will ship me the replacement cable next week?  After 8 months of this nonsense I still have no cable and experience very slow if any responses. As far as I am concerned he has stolen my $400 by refusing to send it back to me or the seller.  It’s sad because he makes excellent cables.  I happily bought an umbilical cord a few years ago directly from Brad with no issues.  Brad has a history of this inconsistent poor selling behavior documented on forums.  Buyers Beware!