Debit Order didn't go Through

I'm disgusted with the service i got from Oakhurst, my policy number UNQA*** and OPLA***, my account was supposed to be debited on the 25.05.2022, the debit order didn't go through i called them on the 26.05.2022 at 8:22 am and spoke to Shirley i asked her if there was an issue with their debit order request she said no i should wait the debit order request was send and they have not received any notification that the debit order didn't go through, today the 27.05.2022 i called again because i don't want to have an issue where i would be told that your car is not covered because you didn't pay your account, i spoke to Prudence Junies instead of logging a call with their IT Department she is asking for my bank statement, so she doesn’t believe me when i tell her the debit order didn’t go through because i have log on to my bank app and all the debit order went through except for my insurance debit order, she said there was a problem with debit orders for the 25th but not with my debit order, if there was a problem with debit orders for the 25th how does she know mine is not affected because the debit order didn't go through, i asked her and she couldn’t even answer my question, can Oakhurst IT department investigate because my debit order didn’t go through and i know i have money in my bank account so why are they not doing anything about it, if there was a problem with other debit orders chances are there is a problem with mine as well because it was supposed to have gone off on the 25th the same date that they experienced problems with other debit orders, i don't understand why as their client I'm supposed to tell them to resolve the matter while the company know that there is a problem with their system.