Bad customer service from momentum

We were contacted by the insurance unclaimed funds. REF NO *** for my late grandfather .Submitted all the paperwork on the 23.08.2024 and till today no payout. I phone everyday and they telling me about some technical issues on their side and they are making it my problem. I submitted Ruth didn't submit , I started calling after 20 days only to find out nothing was submitted its being a nightmare dealing with this people as if they want to keep the money for themselves . I am frustrated with them it has been an ongoing battle with this company , they are not honest at all