False credit information

I have a personal loan with absa. During lockdown I took a payment holiday for 3 months. After a communication problem they put my holiday up from June to August. I requested it to be from May to July. First I received messages that I have an amount outstanding and they kept trying to withdraw the amount from my bank. After explaining everything they apologized and told me it's sorted. I started paying my account again in August. My break was May, June, July. NOW MY CREDIT REPORT SUDDENLY SAYS I SKIPPED MAY'S PAYMENT??????? REALLY??? Every forum of contact I have tried making has either gotten no reply or I keep getting told I am through to the wrong department. I don't even want to mention the airtime wasted. Either this is fixed and I receive a new copy of my credit report or Experian will have to investigate these claims. I honestly expected more from a bank like ABSA