Complaint sub-issue: Right to dispute notice not received

Veterinary practiceXXXX { aka XXXX } : Changes agreement of how account would be paid { partial credit payments of {$200.00} per month, oral agreement after lump sum of close to {$1000.00} was paid by XXXX/phone, initially. Without advising myself, creditee or XXXX { XXXX } who was paying for my XXXX dog 's treatments. A total of {$1400.00} was paid by XXXX between XX/XX/XXXX & XX/XX/XXXX ~ less than 2 wks. XXXX dog was placed in medical endangerment XXXX. As XXXX XXXX, acct, held out for more money. Wasting time that life saving care could be administered. Time slipped & XXXX dog to suffered. Even though, the acct was below the full estimate of costs. After she had, orally, approved phone partial pmts/ {$200.00} per month credit payments. She plays domination game : results in our dog suffering, repeatedly w/o minimal medical intervention ( XXXX ). My XXXX dog died XXXX only after addl pmt was made.Still, refused to put her XXXX until more money was collected. Another partial pmt was paid by phone to XXXX. Pmts of {$200.00} each were mailed by XXXX { XXXX 's XXXX, XXXX XXXX XXXX } in XX/XX/XXXX,XX/XX/XXXX ,XX/XX/XXXX & XX/XX/XXXX. Vet practice refused to process those pmts. Claiming all XXXX got lost in the mail. XXXX XXXX, acct mgr & XXXX XXXX, practice mgr say XXXX sent invoices to XXXX president, XXXX XXXX, by fax. But, never received fax confirmation as fax machine was inoperable.Never phoned XXXX, or myself, to resolve unpaid invoices. Neither of us received invoice, bill or notice that payments were ( supposedly, XXXX separate months ~ lost in the mail by USPS? ) not received. Upon receipt of Hunter Warfield collections notice { see attached photo }, having had no prior notice that payments were not received or processed { 4 months }. A staff mbr advised us there were no invoices, del notes in my acct file. XXXX & myself made numerous calls, ( many unreturned ) to pursue remedy/make pmts. Practice refused pmts since XX/XX/XXXX. Practice refused to remove Hunter Warfield or collections status which were.erroneously.involved. My due process, as a consumer & creditee rights are violated. No 30,60 or 90 day notices. No phone calls. Last invoice/pmt notice received is XXXX. Account was sent to Hunter Warfield in less than 60 days. This has victimized myself, my XXXX animal { died XXXX }, XXXX { charity } good standing. As well as endangers my current XXXX dog 's future medical care, when the need arrives for a specialist involvement. I, and the XXXX, XXXX 's XXXX, XXXX XXXX XXXX, have acted in good faith to pay said account current. XXXX XXXX, on XXXX XXXX, advised me how sorry she was for all the mistakes, misinformation resulting in XXXX 's suffering & my victimization. She said it would take her a couple of days, but she would attempt to work out a pmt plan. XXXX XXXX should be ready to put down {$1000.00}. She would advise upper management of the XXXX XXXX. And, request that my account return to the practice for repayment. 3 weeks passed, I made XXXX phone calls to check on the status. I was advised XXXX XXXX was busy. XXXX XXXX sent me an email on Friday,XX/XX/XXXX to advise Hunter Warfield , debt collector would be the only manner to repay the practice. This results in me allowing a debt collection to my credit report. The rescue org paid, but the checks were not processed due to a unadvised change in payment arrangements If I contact Hunter Warfield, they can at anytime report a delinquency/collections plus interest accrues ~ even, if XXXX pays. The practice has been injurious to life they should 've protected & saved. Affected XXXX 's XXXX good standing as a charity. And, placed undue hardship and punitive damage on myself.