Question about booking hotel with debit card? | Hotels In Reading

I've read hotels freeze debit cards when you use them as payment. Do they just freeze those funds or do they freeze the entire card? Example: I book a room. ... well, in canada, debit cards are not linked to credit cards…so if you were to say register at a hotel, they would charge the card upfront for the amount of the hotel stay, PLUS, the 100 or 200 security deposit. NO more than that. Even in the USA, where there is often a credit card backing the debit card, ...