My bank always blocks my card when a charge for an Apple pre-order is attempted 🙁
I tried phoning them in advance last time I pre-ordered an Apple product, to pre-warn them that there would be a perfectly legitimate charge coming through from Apple, but they said they couldn't do anything as the system is automatic. I would just have to wait for the inevitable auto-block, then phone the bank, then phone Apple.
I'm dreading the same happening with my Space Black Apple Watch, and causing me to slip further back in the queue...