WooCommerce change Tax Class programmatically when Recalculating an existing Order

I’m hoping someone can’t point me to what I am overlooking. CIRCUMSTANCE: We have some unique business logic whereby a custom user meta field affects the appropriate tax class. We have three customer “types” (which is this user meta field, say ‘type_one’, ‘type_two’, ‘type_three’) with three corresponding custom Tax Classes (‘class_one’, ‘class_two’, ‘class_three’). When we … Read more