Unfortunately we have to wait a few more days before we know for sure if ANDI was able to change the designation of the Series B shares as they promised in a press release.
The Wyoming SOS is only showing that they have processed filings through March 20th
But to answer your question about retiring shares. Each individual shareholder would have to agree to give up their shares. Typically when a "share retirement" takes place it is restricted shares held by an officer or control person of the company (an affiliate). Sometimes they aren't even really retiring anything they are just converting their common shares into preferred shares to lower the O/S without giving up voting control over the company. In the case of ANDI no executives own any notable amount of common shares. Utopya Innovations Inc holds control over the shell through their ownership of Series A preferred stock. I can't see anybody giving up their shares to have them retired. If you don't want to own your ANDI stock any more the smart thing to do would be to just sell your shares into the market so you can make some money off of them.