Business ProfileforSolstice Marketplace

I went to see a dentist my my regular checkup.I confirmed with both, Solstice and the provider, that they were in network prior to having any service preformed. The doctors office and the dentist were both listed as in network on Solstice's website and I also confirmed with the dentist office that they were in network. The dentist office also confirmed, prior to service, that the provided service were covered services in my benefits summary. Now after I had the services preformed Solstice denied the claim submitted by the dentist claiming that the doctor was not in network, which is not true as they have the doctor listed as in network on their website.I contacted Solstice and after a long back and forth the representative that I spoke with once again confirmed that the doctor was in network and she said that they would be manually resubmitting the claim and that it will be approved and paid for. The next day I received a call from someone else at Solstice who said that they are denying the claim and again claimed that the doctor is not in network. Which once again was confirmed multiple times both before and after the service was preformed. I had covered service preformed at an in network provider and Solstice is flat out lying just to avoid paying what they are required to pay. I am requesting that Solstice refile, approve and pay the the claim from the dentist ASAP.