Compuscan system sucks

I honestly believed that credit beaurues are to be trusted with consumer information they provide to credit providers, until I was wrong, not once, not twice but three times by Compuscan. I pay my creditors on time every month. Last month I was surprised to see a paid up account with Old Mutual was reflecting as in arrears. I contacted Compuscan and they told me I need to get a paid up letter. I got the letter and sent it to them. They speedily resolved the matter and sent me a new and updated credit report. The following week I checked my credit status using FNB App, I was surprised to see another paid up account, which reflected as such on a previous profile was now reflecting as in arrears for eight months with effect from April 2019. I then contacted Compuscan again, they then shift the blame to the service provider. I told them that's nonsense as the account was correctly updated since last year. Again they told me to contact the service provider and forward the paid up letter. I then forwarded that to them. On both occasions they logged a dispute. I cannot understand why the account that was up to date for a year, and reflected as such on my credit record and all of a sudden when it has been settled will reflect negatively. And I must now provide them with proof and wait up to 21 days for them to investigate.