These numbers were dialed as any other number, such as 976-1234.
A call to either one of these numbers can result in a high per-minute or per-call charge.
It'll also have terms and conditions with info about interest, fees, repayments and limits. It'll normally take a couple of days for the credit card company or bank to decide whether they'll give you a card.
Store cards Store cards are like credit cards that charge even more interest, and they only work in one place.
They're pretty crap options for borrowing money because they tend to prevent you from shopping around.
Debit cards Debit cards are a better option than credit cards for a lot of people.
Also, the early incarnation of 900 was not billed at premium-rate charges, but rather at regular long distance charges based on the time of day and day of week that the call was placed.