NO MAN, NEDBANK CONSULTANTS!

Early 2020, I received a phone call from an individual named Nonkululeko Zuma at Nedbank who offered me a cheque account with them. He/she mentioned a whole bunch of perks that would come with the account, including a R200 monthly rebate provided I have my salary go into the account and my car financing debit order goes off from the account. I would receive this R200 monthly rebate for the duration of my car's financing period with the bank. Ever since I accepted the offer, it has been a struggle every month to get this rebate. For some months it never came through, and for other months it comes on different dates, and during some months I must query it. Today, I had to query it again. I was given some long, lame explanation as to why the payment is delayed. I explained to the individual who I was chatting with on Facebook, that when it comes to deducting the monthly account fee and debiting my account for my car, then that happens spot on; however, when I have to receive my rebate, it comes with long, unsatisfactory explanations. This person just keeps on mentioning that the payment dates vary because the payments are done in batches, and he/she can't confirm WHEN I will receive the rebate. How is this my problem?! Because they have an ineffective system that they follow, I just have to be happy WHENEVER I receive the rebate. If I had known that this was how things were going to be, I would have stuck with my previous bank. In fact, I think I should do that. The individual on Facebook is so unsympathetic and unaccommodating... just keeps informing me that "the payment dates vary because the payments are done in batches." Really?! Why does their ineffective system have to be my problem?