Uncleared payments

I have four payments that are uncleared from Uber Eats and Checkers in my bank account. I have followed up with service providers and confirmed that I was not charged on these four occasions as the goods were not delivered. However,ABSA has not released these monies back to my account some for more than a month and one for three months. Isn't the bank supposed to release money back my account if the third party has not claimed the funds for over 30 days.