Business ProfileforNavigant Credit Union

I had a debt with this bank, a loan of $600 from 2019, due to health issues I couldnt make the payments and this loan went into collection. Since it appears in my credit as close but it was never paid, I contacted the collection person at this branch. This person did nothing but discriminate me and kept on saying this debt was since 2019. I believe I already got my punishment by having my credit ruined by this. The person **************, he asked how much you I had to settle the account, I asked if $300 would be sufficient, he laughed and said he will run it by his manager and will get back to me. After 1 week waiting for a response, I had to call again and ask for a follow up. He finally returned my call and said that now I owe them $600 plus interest for the past few years, now my new balance is $1100. I asked to send me everything in writing and he said it was too much to provide that information. I would like to settle this collection but clearly with someone who can handle this better. I have a medical condition and I am willing to provide information if needed.Also attaching screenshot from my credit report that shows the balance reported and the status of the account.