GO2bank complaint: Returned fees not being credited back to my checking account

I’m filing a complaint due to the customer service representative filing a dispute on the wrong transaction and I was charged a returned check fee. When I spoke to the another representative that file the dispute on the correct transaction he told me a specialist should be able to help me with getting back my returned check fee since it was due to an error on their end. Upon speaking to the specialist Omar he was very rude and I asked to speak to a Supervisor he said they would just tell me the same thing. I said that’s fine I would still like to speak to a Supervisor because they should be able to pull up the phone recording when I filed the 1st dispute to hear I told the representative the 1st transaction and the date of it multiple times, but she still somehow filed it incorrectly. He put me on hold, then picked back up the line and hung up when I said hello. I need some help as soon as possible please