Can I change my PAN after my KYC is submitted?
Usually, we fetch the PAN card number from your PhonePe wallet. If it is not fetched right, you can enter your PAN card. Please know that the policy will be issued under the registered name on the PAN card provided. 
If your PAN card is not verified, you may be asked to submit KYC documents separately (Identity card, address proof, and selfie photo)

 

Related Question
My Pincode is not getting verified.
Can I change my details if I have given incorrect details?