Is this a reasonable amount of time?

Hi!

In February of 2007 I began seeing a therapist at a local community practice. Shortly afterward I began to see another practitioner for medication management. So I had two people that I saw from the same practice.

I relocated across the country at the end of 2008. Shortly after arriving in my new state, I received a bill for approximately $600.00. I was very surprised because it was customary for me to submit my co-pay at the time/date of visit.

I called the practice and spoke to someone in patient accounts. I was told that there were times that I did not pay at the time of service. I asked if she could send me an itemized statement of the account so I could reconcile it with my bank records. I knew that this might become a problem because shortly after I relocated, my online bank (Netbank), was bought up by ING Direct. I called ING and was told it might take a while to get all the past checks/debits from the Netbbank accounts in one place.

About a month later I received the same bill. The "statement" consisted of a single page of paper that listed the current date and the current amount owed. I called again and asked to be provided with an itemization. I don't know about the rest of the world, but I don't keep a diary of what date I saw X on. Since I had two providers, I needed to know who they were talking about; I needed to know which visits they claimed I didn't pay. I was assured something would be sent.

About a month later I got the same exact statement in the mail. At this point I typed a letter asking for a complete itemization of the dates/providers/amounts they claimed I did not pay at the time of service and that if it was not provided to me, I would assume that the debt does not exist. I sent it "return receipt requested". That was in May of 2009.

I didn't hear back from them and nothing is on my credit report. I figured they realized they made an error and that was it.

Last week they called asking for payment. I stated that I had requested the necessary information sixteen months ago and never heard back. I was told that if I agreed, I could pay them over the phone for 50% of what "I owed". Well, nice try but..no. I'm not willing to pay 1% of something I'm not convinced I owe.

Several days went by and I got this huge envelope of invoices or some-such. They've sent me my entire payment/visit history and I have to go through and find what I paid, what I didn't pay, etc. Additionally, I never did request that my old bank records be provided to me (they never responded to my dispute letter so there wasn't a need to go through the bother with the bank).

So my question to you wise sages is:

Did they give up their right to collect when they didn't provide this information over a year ago or am I going to have to write them another letter and then work a part time job going through all the invoices and figuring out what's what? It doesn't seem reasonable that they would take sixteen months to mail me a print out. They've had my current address the whole time. Sheesh!

Which states statute of limitations would apply in this situation, the state where I lived when services took place or where I reside now?

I so do not need this in my life right now lol.

Thank you in advance for any insights you have to offer!