Just experienced the same problem today.
Just fitted a galvanised bulkhead and thought that while I was at it I would replace things like the heater, wiper motor etc for new items.
OE Lucas wiper motor supplied by Bearmach and it ran backwards, a quick check that I hadn't done anything silly like somehow putting the spindles on upsidedown drew a blank and I was left scratching my head. A quick Google search came up with the reedx item and sure enough, the ramp needed to be swopped over which luckily is only 10-minutes work.
How many people are sending motors back because of this and why are UK items being sent out set-up like this in the first place?