Sophia,
If there was no settlement at all, you need not file 1099C application. However, what was the exact difference between the actual debt and that you paid them?
If there was no cancelled debt, they cannot claim $834 also. You can dispute this with RJM. You can send letters to them to get more help. Search for their address with
BBB.
If nothing is of any avail, consider contacting professional tax advisor.