Experian making matters worse for my unfair listing, I was billed incorrectly!!

I disputed incorrect information on my credit profile, dispute ref EGL***. Mix Telematics billed me incorrectly and they are willing to assist. They couldn't locate emails from Experian investigating team and Nirvashnee, credit manager from Mix Telematics made an effort to contact Experian and no response from Experian. See her email below:

Good Day Experian Team Kindly assist to update the client’s profile as his account was not overdue. He paid a settlement fee on the 26th January 2021 and subsequently the billing for February 2021 months subscriptions was done. We have issued a credit note from Mix Telematics to rectify the error. Please update the client records. Regards Nirvashnee Atchiah Credit Manager (Africa) <image002.png> t. +***2 e. *** www.mixtelematics.com All that I am asking from Experian is to remove the listing, contact Nirvashnee, she is ready with information. Stop ruining my life, I never defaulted on paying Mix Telematics