Here in the capital very few places ask for proof - Ikea, Pricemart, Illumel and Illumel outlet - that is over the last two months.
Never asked: Agora Mall, Sambill Mall, Blue Mall Jumbo, Bravo, la Sirena, Nacional, Casa Cuesta, Aliss, and hundreds of smaller places.
Few banks asking! I do not go in just observe from the entrance.