Poor service ABSA Bank

I have been a satisfied ABSA client for over 40 years UNTIL now. A deposit was made into my bank from a Nedbank account which has definitely been issued out if Nedbank and has gone ‘missing’. The most helpful support I received after various calls was to ‘lodge an email complaint’ which was responded to with ‘we’ll get back to you in 3 days’. Most unsatisfactory. Tried to make an appointment with my branch manager and was advised to go to Client Services counter and if they cannot assist you can then request to see the manager. 😡