Truly useful and polite courtesy call

Yesterday I was contacted by a lady from Absa bank while I was busy at work. She was extremely polite and akes me if I could talk. When I told her I was busy, she asked me when it would be convenient to call back. I told her today at 12:00 would suit me.<br> <br> Today at exactly 12:00 she called me back. I really appreciated the courtesy call to inform me that my account was being upgraded. When I was worried about giving my ID number telephonically, she asked me other questions to verify my identity instead. She also answered my questions (such as if I could keep my account number) as if I was her only customer. I received an email with information about the upgrade minutes after the call.<br> <br> Thank you for the great customer service!