Minute Clinic fiasco

So I went to a minute clinic to be seen , the booking process was fairly easy. I should have saw the red flag when they forced me to store a credit card on file before I could book a visit.

Anyway I called my insurance company to make sure the clinic was in network. They said it was and that minute clinic visits were covered at 100%

So I had my visit and go home with meds thinking all was well. Woke up this morning and got an email saying they charged $150 for the visit. wtf!

Call minute clinic customer service and they say I was charged for the visit because it was out of network with my insurance. Not true. Called insurance AGAIN and they say, yep clinic is in network. What the heck do I do now???