Terrible Service from Experian

Good Day Experian i am being polite in this message.but actually i am sick and tired of you guys and the incorrect information on my credit report i am tired of running around getting information and documents to sort out the mess up made by the one and only credit bereau experian and their workers,there is an absa account on my name which is pescribed the last payment date was on the 28/12/2016 and we are now in 2020,i logged the query and dispute twice on the website no one responded to me for 2 weeks eventually someone responded last week friday the 21/08/2020 on email and asked me to fill out a form and send it back which i did and after that there has being no response ,its really frustrating to keep going back and forth and further more experian is the only credit site that is showing this account as all other credit bereaus has removed this account a while ago,i want a reply to my query as soon as possible or i will take this up with the credit ombud as there is no compliance from experian towards consumers,because of this i am showing as a bad payer and unable to do anything