Unauthorised debot order and no answer when calling customer services line

<p>Good day</p> <p> </p> <p>For the past few months an entity is trying to take money from my account via a debit order that I did not authorise. The y haven't been able to because I don't keep enough money in my account, but I have been trying to call the helpline listed on the sms i receive from the bank with the details of the debit order (***), but nobody is answering. I select the option I need and then listen to music for more than ten minutes and no one answers.</p> <p> </p> <p>This is pathetic as I expect to get assistance within a few minutes. I can understand that the call centre might be busy at times, but I have phoned at different times of the day (morning, mid day and afternoon) and the result is the same - no answer.</p> <p> </p> <p>I am very unhappy.</p>