Poor Service from MFC

I was contacted by Nedbank and suggested that i move my bank account to Nedbank. I agreed thereto and opened a Nedbank account. The service up until then was great. I phoned MFC to request that my debit order date be moved to the 26th of the month as it is weekend and i need to transfer money into the Nedbank account. I did not change my banking details at my employer as yet. It was confirmed that my debit order date is set accordingly but the date for the debit order of February can't be moved from the 24th to the 26th. I made sure to transfer money into the Nedbank account on the 23rd of February for the instalment to go off on 24 February 2024. This morning i saw that the debit order did not go off... but to my surprise i received the following sms: Nedbank MFC. Thank you for choosing us as your vehicle/asset finance partner. You have missed your 1st vehicle/asset instalment on account *** which was due on 24 Feb 2024, resulting in arrears amount of R ***. Paying on time is important....I phoned like 4 times this morning and still i cannot be helped to sort out this issue. I was given a number for Vuyiswa Nhlapo *** and this number is not working. I am being treated as someone that is not paying my account as per the agreement but i was not the one at fault. The funds are still in my account and i am still awaiting the debit order to go off as MFC insisted.