Originally Posted by
sokolov
Certain goods or services might have a lower rate or no VAT at all.
I don't think OP is looking for VAT refund on shoeshine service, although that's probably taxable in EU

Generally, you'd need to spend in excess of €100 at any one location (merchant) to qualify for a refund. That limits admin costs associated with refunds for petty purchases - if requested. But still, location specific.