I leased an apt for my friend, and apparently put gas under my name. Apparently, he did not receive the gas bills from January and he moved out March 31st. Owing $76.41. So Cal Gas was mailing me, I did not live there, till June 2016 and trying to collect debt. Unfortunately, I did not receive it and since my friend did not live there he did not either. The collection agency, mailed us in August, again we did not receive since we did not live there. Now in September I pulled my credit report and I see a debt collection. I contacted the credit agency they said too bad, i should had known and if I pay now they will only tell the credit Bureau that it has been paid in full. I never ever miss a payment and never knew about this until 1 hour ago. What are my options?