Prescription questions

I recently got a new insurance that covers zepbound with PA, but I have been using the c version and I’m at 5mg right now, I want to go up to 7.5 and get a prescription from plushcare and have them submit the PA to my insurance. My questions are: Will my insurance approve the medication if they see I will be using a 7.5 dose for “the first time”? And what is your experience getting the med every month? Do you have to hunt down pharmacies all the time? I certainly will like to use my insurance because I will save a lot of money doing that, but at the same time I don’t want to stress every month about not knowing if I will be able to get the med or not, and I don’t want to go through the process with plushcare and waste money for the insurance to say deny the pa because it’s a higher dose. If you have any experience or knowledge concerning this, I really appreciate your input. Thank you.