Hello,

Last September I signed up for my first credit card to get in on Delta's 70K bonus miles. A few questions...

1. I had about 30K miles in my account before I started, so after the miles I was at about 100K. I booked a RT to china for 75K. If I did cancel the card in the near future would the 25K still in the account be safe or could they take them back?

2. If I cancel the card do I call and ask to be moved to a card with no fee or just close the account? If I move to a card with no fee would I be elgible for a new bonus offer in the 2 years?

3. If I stay with the card and pay the yearly fee can I still get a new bonus in a few years or is it from the point I cancel the card?

4. What's the number of miles offered by most airlines that make it a good deal to sign up for? I know some people get the bonus miles frequently, but do they then cancel each card yearly or pay he fee?

Thanks for any help, new to all of this.