Product: Debt collection

I had a medical bill with XXXX XXXX XXXX back in XXXX XXXX the amount was originally about XXXX. Then of course with attempts trying to get me to pay the kept lowering the amount. When I finally had the means to take care of the debt in XXXX XXXX, i responded to letter i received from Pendrick Capital Partners who currently owned the debt. They gave me the option to settle the debt for less amount of about XXXX, but I had to pay the initial payment of XXXX then 30 days later, pay the balance of that amount. Therefore I responded to this notice and tracked the account and by this time XXXX XXXX XXXX currently owned the debt, therefore they agreed to the terms pendrick capital partners offered me. Here is a copy of the final letter statement XXXX XXXX XXXX sent to me regarding the debt settlement. 

" XXXX XXXX XXXX, XXXX. Hours of XXXX : P.O. XXXX XXXX XXXX : XXXX a.m. - XXXX p.m. 
XXXX, MO XXXX XXXX : XXXX XXXX XXXX XXXX XXXX 
Toll-Free # : XXXX XXXX : XXXX XXXX XXXX XXXX XXXX. 
Website : wwwXXXXcom XXXX XXXX # : XXXX Current Creditor : Pendrick Capital Partners Original Creditor : XXXX XXXX XXXX XXXX Account # : XXXX Account Balance : XXXX XXXX/XXXX/XXXX Dear XXXX XXXX, Pendrick Capital Partners has placed your account with our office for the collection of your delinquent debt. Per our previous discission ( s ) with you regarding this, we were able to come to a resolution and reached a settlement agreement. This letter is to inform you that this account is now settled in full, and XXXX XXXX is no longer obligated for any further payment ( s ) to the above mentioned debt. In the event of any payment issued being returned for any reason, this letter will be considered null and void, and further collection activity will continue. 

If you have any questions regarding this matter, please contact us at XXXX. Our financial care specialists will assist you with any questions you may have regarding this matter. 

This communication is from a debt collector. This is an attempt to collect a debt. Any information obtained would be used for that purpose. 

DISCLOSURE : Anytime a creditor reduces the balance owed, equal to or greater than XXXX, the creditor may be required to send you an IRS XXXX " Therefore this account was suppose to be closed out XXXX XXXX, then fast forward to XXXX this same debt ends up back in collection with the XXXX on my credit and i logged a dispute and they took care of it. Unfortunately I cant remeber which collection agency it was with when it occurred. Now XXXX XXXX again another collection agency this time cXXXX XXXX XXXX is now going to XXXX  reported a collection on my credit for the same debt that i have settled months ago. This mean this is the second dispute for collection debt i settled months ago. Then i contacted XXXX XXXX XXXX  collection agency and they say they received this same debt from pendrick captial partners. Then they ask me for the confirmation letter that i received from XXXX XXXX XXXX to confirm that i settled the debt. When i forward the letter they tried to say the account numbers do not match, but I told them of course they do n't pendrick captial partners sent it to you another company so why would they match. Although the dates did match and the original amounts matched as well.