there is no handling fee for credit card deposit, but credit cards do not advocate deposit, because even if you deposit it in advance, you have to pay him a handling fee to take it out, which is very uneconomical.

withdrawal (if it is an overflow, it is to put the money in it first and then take it out) only pays the handling fee.

to withdraw money (there is no money in it, that is, to overdraw cash), you have to pay not only the handling fee but also the interest of five ten thousandths per day.

There are no points for online consumption, and of course there is no mileage. To be honest, the so-called accumulated mileage is very difficult. A plane ticket needs thousands of miles, but usually it takes 2 or more points to change a mileage. You can calculate it yourself.