Complete lack of customer service

I have tried and tried to dispute information on my credit profile but with no luck. I have spent 30 minutes on the phone with them and was told to email my dispute through. I have done that twice and never got a response beside the auto reply. I had paid up an account almost 3 months ago and even got confirmation that the service provider sent the instruction through to experian to be updated, but the information on my account is still showing as unpaid.