I mean, the few times I have handed a receipt to an accountant to do my tax they have asked me what currency it's in and I have had to go to the bank records to

I mean, the few times I have handed a receipt to an accountant to do my tax they have asked me what currency it's in and I have had to go to the bank records to answer that. Anyway, it's besides the point. The point is that online stores should ask, a tick box would do, as the majority of the time I don't want the receipt and don't need it for anything at all.