okay so i just bought the sidekick slide and it gave me the option of what prepaid plan and i chose the Sidekick plan which is unlimited text, internet, IM, and email plus 15 cents a minute for phone calls for a dollar a day. it gave me the option to refill online with a credit card or to buy a refill card from the store. the have 10, 15, 25, 50, and 100 dollar refills. But, are the refills for an amount of minutes or days they last? for instance, if i buy a 25 dollar refill, is that 25 minutes or for unlimited everything for 25 days???? please help someone! i have to buy my refill card tomorrow!!!