ABSA unwilling to assist via email to close overdraft from overseas

I emailed ABSA from overseas about a matter I need help with. I need to close my overdraft. ABSA took five days to respond and told me in the response they are closing the complaint and that I must call them. The point of the complaint via email was that I CANNOT CALL ABSA BECAUSE OF THE TIME DIFFERENCE. I need the matter resolved via email! PLEASE ASSIST!!!! THIS IS NOT OK! Quick to give debt but so so so slow to help us get rid of the debt. THIS NEEDS TO BE DEALT WIITH ON EMAIL.