Pretty sure they offer a discount to cash sales made in store. I wouldn't expect the same to apply to a wire transfer. I bought my pair end of last year. I just asked Rezso if they deducted VAT and he did *shrug*.
RTW is styles produced en-mass on standard lasts. MTO is styles produced to order, with last/materials/sole/etc chosen by the purchaser. MTM is styles produced to order, with last/materials/sole/etc chosen by the purchaser, as well as the ability to make alternations to an existing last (I am unsure of what restrictions are placed on these alterations.). Bespoke is starting a last from scratch.