If it's just a medical collections I would imagine you can solve the problem over the phone especially if you think you paid it. Get info about the debt, and find the record of you paying it (check carbon copies, bank statements, etc.). You should always get receipts for anything medical related because their billing is so complicated you have to track everything for accuracy.
If you find out that the bill was paid - don't forget to check your credit reports (all 3 of them) and file a dispute to get it off your record.







