Renewal date and expiration date are indeed exactly the same thing. What you are looking for here isnt renewal date, but invoice creation date. This would also be the payment date if there is a valid date on file. Is that correct? Sorry for the frustration there, but payment date and renewal date are not the same thing.
If that is indeed what you are referring to, you would need to post this within our suggestions forum as a new suggestion. There is nothing that would display invoice creation date at present, and it would need to be invoice creation date as that isnt actually when it is due. Its due by the expiration date which is shown. Its simply that payment would automatically be taken at invoice creation point as mentioned, if there is a payment method on file