Account closed without warning! !!

I am out of ideas. My account as been closed twice in Iess than a year.now I ave a new account tat I have no use for . In December wen my account was reopened, i asked for it to be downgraded so I can maintain it because I needed it for my dividend s. In June I found out its closed again and they opened a new one. I need my previous account number back to receive my dividend