Failure to send notification for Debi check mandate.

So I switch insurance companies at the beginning of August 2021. Today the 27th August I get a Debicheck expiration notification so I phoned and ask why did it expire, they tell me it expired due to me not accepting it.

Well for **** sakes if I got a notification for it I would have ****ing accepted it.

No notification what so ever and all they can say not our problem you should have checked.

Well after a hour of searching I find where to check on my Debicheck mandates ****ing hell this is the most non user friendly ****ing app from a bank ever.

Due to your *********** idiotic app I am now without insurance for a ****ing month. What the **** must I do now? How the **** am I supposed to get to work now? How the **** am I supposed to get around.?