favouritism for a company

Months ago I emailed experian asking for a complaint form as I wished to log about being put on itc by Telekom. Instead they do not sent me a form they initiate a complaint and I never even tell them what happened and before I knew it experian was already taking what telkom says as truth without hearing my side of the story and when I make certain request I just get same answer and when I requested to speak to a manager my emails went without any feedback I think it is actually disgusting that a company should behave in such a manner and to then start ignoring a person emails cause their service sucks on all accounts