Prepaid cc address question

First off I'm old enough to buy anything I please, I don't have paypal and never will and I'm not going to get a money order. My personal credit card is maxxed and shut off but that's how I've done my ordering in the past and I'm comfy with that method. If I get a prepaid visa from walmart and use it at xp medical what do you do for the "billing address section" of the online form? Is it left blank? Obviously the mailing address section will be where the diapers end up. Some post I've seen say you might have to call the number on the card and have them adjust something but I'm sure someone is 100% sure from doing this method with xp med. Please no "I heard this" or "I think but I'm not sure" responses to this. I need to know for sure by tonight or I'm just gonna get a walmart gift card and use it on their website to get molicares. I really want to get dry24/7 from xp med though because I haven't gotten them in years. Thanks all.

Prepaid cc address question