*!*!* TRAVELER ALERT *!*!* Today July 6 at about 2:00 pm I made a stupid decision, I didn't read the Yelp reviews, and I entered this store. As a Canadian visitor to Prague I decided to purchase a 4gb data SIM card so that I can use it during our visit here in Europe. The iPhone did not support their network of the SIM card. When I asked for a refund, they refused to return my money that I paid for the SIM card. They said because I used a credit card they can not refund my money back. Only if I paid cash they would be able to return my money. STAY AWAY FROM T -MOBILE. ESPECIALLY THIS ONE AT PALLADIUM SHOPPING MALL PRAGUE. Welcome to Prague. read more