Low Pay Card Scam...Will they charge your bank account if you do not Activate?

ok so my dad went a little dumb on us...he saw the low pay card site and thought it was a regular credit card...he gave them his information which includes his BANK ACCOUNT info (grr)...

i've looked online and found tons of complaints about this huge scam going on where you have so much trouble trying to cancel, they charge you tons of money before you can actually get through to even try to cancel it...

well some ppl have written they have just shredded the "card" and the Activate Today letter they got in the mail...will this work? my mom says he'll probably just have to close the current account and move everything to another to keep the company from stealing from the account. But i was just curious to ask any lpc users that if you never activate the card, will they still charge because they have your info?

thanks in advance