Gold Key Credit, Inc. Debt Collection Complaint

Gold Key Credit, Inc. Debt collection department,

Medical Cont'd attempts collect debt not owed Debt was paid Florida

I have disputed a couple of collection account w/gold Key Credit. They have removed - item but are refusing to remove an additional Medical collection account in 2014. I advised them that 1 ) I never received documentation of the bill - ) My family and I receive Medicaid and Food stamps because we are low income. I recently spoke to them advising them I can provide them with my medicaid number and they refused to speak to me futher. This collection on my account has caused signficant damage to my credit anc my chances of enrolling in the 1st time Home Buyer Pram for low income familes. Please help me!