Sold MMTLP Preferred shares in 2022, WeBull is reporting a zero cost basis and provided no supplemental form. Just trying to figure out how to proceed.

Having a hard time figuring out how to proceed.  MMTLP were preferred shares from a spin off in 2021, I sold them in 2022.  WeBull is reporting a zero cost, and TurboTax is asking me to verify the cost from a supplemental form.  There is no supplemental form, so I am at a bit of a roadblock