They ruined my credit score for 7-10 years, putti...

They ruined my credit score for 7-10 years, putting me in a particularly inconvenient position as a recent USC MBA graduate. I received a notification from Credit Karma saying my score had changed, and when I logged in I saw that it was from USC sending two medical bills I never even knew about to a collections agency.

After speaking with the collections agency and USC, they say USC sent the two bills to an address I had since moved from. When I asked why they didn't call, they said they did, so I asked them what number they called. It was off by a number because someone didn't input it correctly.

The result? Not one, but TWO derogatory remarks on my credit score because they submitted TWO bills that I never knew about to the collections agency. These bills totaled less than $500: clearly something I would have been more than happy to pay right then and there and not something I'm dodging.

I asked both if they could do anything about removing the derogatory remarks and they just said they tried contacting me, and they can't do anything about it. Way to set your graduating students out on a good path, USC.