Bad attitude from one of the call center consultants (Portia)

My husband called the call center to inquire about the debit other that he does not know that went off from his account. From his online statement he could see it going off, Portia the consultant gave him attitude and disrespected him loudly saying the money was returned and doesn't he know how to read as it reflects on print out statement. We still do not understand what happend as she failed to explain. We do not appreciate being treated like retards and Portia must learn how to speak to clients, calmly explain what she needs to explain - there was no need to be rude and disrespectful. If this treatment continues we will gladly change banks