No answer from call center

I had ********** debit orders going out of my account. I tried to contact the call centre for assistance to stop the transaction or reverse them and to put a stop to future such transactions. I waited over an hour on the phone waiting for an answer but to no avail. I had to then stop my card and now hope and pray these transactions no longer go out. What's the sense of a help line if you do not answer. I tried numerous times and the result was the same. Is this the type of service we need to get accustomed to from such a big financial institution.