Collections deletion from Credit Report

I had a health scare and was hospitalized for a month. I can provide documentation by contacting the hospital. I did not receive communication from Xfinity during this time as I relocated shortly after. My account was on autopay so I was not aware I owed money. This has significantly negatively affected my credit score where I am unable to get approved for an apartment and I fear I will be homeless. I found out recently it went to collections by contacting a third-party agency and paid the account in full. I am a loyal Xfinity customer. Is there anyway this can be deleted from my account? It is significantly affecting my life and because of my health issues I was unable to realize that my account was past due.