Not disputing disputes

I have logged so many disputes with Experian they keep on saying it does not meet prescription as these debt collector update an say that a person has paid and has acknowledged debt I have requested Experian to go further and obtain a call regarding the debt as I know I have not spoken to any debt collector regarding debt. Experian do some work contact the consumer contact the so called debt collector don't just do vague answers an expect the customer to accept answers where is proof why tell the consumer to contact the creditors that puts the customer in a position to acknowledge debt . Experian is doing consumers dirty. Please rectify your way on investigate the customer has paid don't take it just on the word of creditors and debt collectors as they can just update it an say the consumer has been in contact that's what is happening in my situation.