Managing an account: Checking or savings account

I mobile deposited a check for $1100.00 from my Principal IRA account to my Truist Checkings Account. The funds are verified & posted on my account but the funds are not available for me to use. These are MY funds transferring from one of my accounts to another one of my accounts. The funds are posted but not available. This is very inconvenient because I have demonstrated nothing but honesty & good faith the entire time with this company but enough is enough. When I first opened my account, they closed it before I could set up direct deposit. The reason was fraud. I HAVE NEVER DONE ANY FRAUD. Fraud? I just opened the account. When I got that situation justified & cleared away, I reopened the account because I wanted to do good honest business with this company. Upon reopening the account, they gave me someone else accounts numbers. My first check was deposited in SOMEONE ELSES ACCOUNT. Luckily, it was great honest man who called & returned my funds. Please help me to get my funds available to use because it is a legitimate & verifiable transaction.