on XX/XX/XXXX I went to the XXXX, acct # XXXX, for emergency services. I did not have insurance at the time so I filed for charity care. i was approved for charity care to cover XXXX % of the charges and XXXX % of any future visits for the next 12 months. on XX/XX/XXXX I went to XXXX, acct # XXXX, for emergency services. i received a bill for this visit and i forwarded the charity care determination which shows XXXX to be responsible for XXXX % of the charges. I never heard anything else about this. XX/XX/XXXX I noticed a new collection item on my credit from AMCOL, acct # XXXX. I immediately disputed this as being paid in full. XX/XX/XXXX, I received a phone call from representative on behalf of XXXX trying to collect this debt again. I advised about the charity care and forward them over all documentation. They advised me this would be closed out. I then forwarded this to AMCOL who told me they would investigate it. Lastly I reached out to XXXX Billing who also said they would investigate this and have the account pulled out of the collection agency. On XX/XX/XXXX, I called to follow up and ensure this was removed as this is negatively impacting my credit. I was told by XXXX Billing that I have to re-fax everything again and they can not tell me a time-frame of resolution. I expressed my concern because every month this continues, my credit is being damaged. I then reached out AMCOL and spoke with a rep named XXXX who told me that XXXX advised that this debt is still owed and that they will not accept my charity care letter because the account number XXXX is not listed on it. I advised to the rep that Charity care states they do not have to add the account number to the letter because under XXXX XXXX it states that XXXX is responsible for all payments for future visits 12 months after the original visit, which this visit falls in that category. As of today, there is no resolution and no urgency to correct this. I have been going around with both companies while my credit continues to get damaged. AMCOL also tried to state that XXXX was only responsible for XXXX % and i had to explain that the handwriting looks like that but you can see where is says patient responsible for XXXX % and that it is truly XXXX % which charity care can confirm to both AMCOL and XXXX.