Netspend Would not release Estate money despite me sending a court order and other documents Huston Nationwide (Texas)

Called customer service, no one spoke plain english, they didn't understand what I was trying to tell them.  I was court elected to be over the Estate of my X-husband, I finally was connected to someone who spoke a little english who could understand me.  they asked me to send certain documents.  I sent documents to a P>O BOC number by certified mail. Netspend said they never got letter.  Post office said no one signed it and letter was still at the post office.  I called them and tried to explain to them that the letter was not signed for.  they did not understand.  At this time, I was about to go nuts, so I decided to send them a threating email saying this is a legal issue and I needed to get the estate's funds out of his account.  I got an answer from a Michsel Guardado, he wanted me to email documents, I emailed them, they came back (mailer Deamond), he called and said he did not get docs. and gave me the same email, I sent docs. again, guess what, I got a email saying he received the docs and is forwarding them to legal dept..  I have been trying to call his number

(512)874-7790 - Michael guardado, Finance Specialist, always goes to voice mail.  Havent. heard from anyone yet.