Seedsbanks billing add/postage add etc

Hi riu, im hoping to place an order for seeds for my second grow soon.
Iv got somewhere to send them to {house A}, somwhere different from where il be growing them out. But then, when i go to pay for them its asks me for my billing details obviously.
I only have one card to pay it with which is addressed to my house. So either way, at some point im gonna have to put in the address il be growing at.

What details do seedbanks hold onto? i dunno how it all works but if the worst was to happen and the seedbank got busted or whatever, what details will they have on me ?
Will they only have records of where the seedbank sent there seeds or would they have my bank details too i.e. my billing address {home address}
Should i go to the bother of arranging getting them sent house A, or will i be aswell just getting them sent to my house ?

Im sure im being a bit over para but il like to be safe than sorry. Plus im only goin to be ordering about 5/6 seeds max. Seeds, not packs lol.

Plan on using this bank http://www.pickandmixseeds.co.uk/

Thanks. Hope that makes sense.