Unprofessional

Called in to confirm if my account is closed as I sent the cancellation off via fax yesterday. Krishnaveni Maduray spoke to me. I asked for confirmation in writing via email as they said they would call to confirm but I didn't hear anything as yet. She was abrupt and ended the call then I received an email from her with not even a subject title. Just saying

"Good day

So you’re ready to say goodbye? We’re sorry to see you go! Your account has now been closed."

I work in a call centre and this is pathetic email etiquette. I need a confirmation of cancellation in professional written format for my record and this is the "professional confirmation" I received.