Showing Address information no matter what

Hello,
I am trying to make the registration / address info fields blank no matter what. What I mean to say is if a user has already purchased from the site and then returns to buy an item his history is locked into the billing info. We need the fields to show blank and the user must re-fill the data.

Please see attached screen shots.

Hi,

In Configuration > Checkout you have to change settings for the login and registration part.
What you need is to use the "Guest" option for the chekout.

By this way, the customer is not stored on Joomla or HikaShop and he has to fill again all it's informations for each checkout.

Sorry But I have already tried that and it still auto fills in the billing address if you have order from the site before.
Please see screen shot.

Any other ideas?