Useless call center

Useless call center. They are unhelpful untrained idiots. I get debited on my account which is now in arrears, and that’s after I have changed my debit order date to the first. I try and resolve this issue by replying yes on a message, an automated system calls me back saying they have reminded me various times my account is in arrears. ****ing bull****!! Today was the first time I found out and when I call no service whatsoever, and the stupid idiot can confirm I changed it on the 20th. But she can’t refer me to the correct person to speak to. I just changed my job and get paid on a different date. Some one better call me back or the will be problems for you and you threaten to list me on ITC.