******* call centre service

I have logged a dispute on my credit profile, according to the National Credit Act, after 20 working days they need to send me feedback and an updated credit report. I have been calling through to the call centre, all I get is that they not sure when I will receive my feedback from the disputes department. I spoke to Nonhlantla and she couldn't assist me. I need an update as the 20 days has lapsed.