Inaccurate arrears on my credit report

In January, I secured a loan with this institution, and since that time, my credit report indicates that I have missed payments on all three accounts, resulting in a significant decline in my credit score. I have been reaching out for assistance, yet my inquiries remain unresolved. The last representative I spoke with on April 21 assured me that she would escalate the issue and contact me again on April 23, but I have not received any follow-up. I deeply regret obtaining this loan, as it has severely impacted my credit score, causing me considerable distress.