Handed over to company they have no details for WFS can take my payment but unable to assist!!!

Woolworths has handed me over to peopm they can not provide a name or contact details for. Strange enough I pay religiously my premium every month and nothing gets updated. My credit record is ruined because of Woolworths and the Customer Service Managers cant even assist. This is my 4th month to seek help as I am a single mother and I need my credit profile in a healthy state but expedian advised me that Woolworths is the reason. I email till I am blue in the face, honestly I will not reccomend anyone to open an account at Woolworths!!!