No, you won't. We got it for free when we opened a credit card at the gas station.

不，你不用，那是我们在加油站开信用卡时免费送的。

You can say: " I'd like to get a credit card" , or " open a credit account" .

你可以说：“我想办一张信用卡”，或者“开一个信用账户”。