Poor customer service

I called Mweb technical service to establish why their fax to Email service delays the delivery of faxes up to 6 hours in my case. The person who took my call (Misham) in their callcentre refused to accept that their could be a problem on their side and refused to investigate the matter. I insisted on speaking to her supervisor Abdul Adams who took the same attitude. After an argument he reluctantly undertook to forward the matter to the technical colleagues to investigate. Where does Mweb find people like this working in customer service?.