hi! i placed orders for my first bals (well two actually!) with Balenciaga LA. I spoke to the SAs quite a few times and communicated via email too. She was really nice and answered all of my questions (i ask soooo much) throughtout the transaction.
What i did was, i scanned my CC and other relevant cards, watermarked them and send it to her via email. Just in case!
i received my bal within a few days after it got processed! it was pleasant

initially i wanted to order from BalNY but the SA didn't sound as nice/patient as the one i approached from BalLA.
You should try calling and speak to them about the procedures etc etc and see if you are comfortable ordering via phone. Goodluck!
PS: They use international shipping and it costs about 75bucks a pop per shipping, despite any amount of bags you buy. They arrived via UPS in like, 3days? HTH!