Same admin transaction but different bank charges

I wrote a complaint regarding bank charges last week Wednesday and I got a call but can I just make it clear that ABSA is a *****ed bank no wonder the troubles its facing now. How can the same transactions have different bank charge amounts and I have banked with a lot of banks, since when does an internal bank charge for internet banking of R16 cause me the same amount for a bounced debit order. I will make you trend on social media just to make unsuspecting people about the kind of a bank they are dealing with. You are a ***** of a bank. So this is how you de***** people of their monies.