Business ProfileforRetina Associates of Orange County

I pay my bills online United Healthcare through my associated *** account managed by *********** I never had a problem with this method. I paid my bill of $199.36 to Retina Associates of Orange County for Medical Claim # DW70313532 on 5/22/2023. This was for my visit on 5/11/2023. The Rally Pay Confirmation # is 1052023AFBA3. For questions, it says please call **************. This reference number ************ was included in the *** transaction. I received a bill dated 6/6/2023 and 7/6/2023 from Retina Associates for the same amount. Apparently, Retina Associates is unable to locate the payment or link it to my account. I spent 4 hours on phone calls in mid July between Retina Associates and United Healthcare. United Healthcare said that Retina Associates received a Virtual Payment from Optum Pay and wanted them to call ************** if they needed further assistance. Retina Associates did not want to call United Healthcare. Instead they asked me to mail a proof of payment which I did on the same day. I received another bill dated 8/7/2023 from Retina Associates asking me for the same amount and threatening to start collection proceedings in 30 days if I did not pay. It seems that I have 2 choices now. 1) Pay this bill twice or several times until Retina Associates confirms that they have received my payment. 2) Retina Associates starts collection proceedings and ruin my credit history. I am reaching out to you to help me resolve this billing issues and to STOP Retina Associates from starting the collection proceedings.