I'd like to upgrade from the United Chase Signature Visa (which I currently have) to the United Chase Select Visa, mostly so that I can get the EQM's for United flights. I have a few questions though:
1) Do you keep the same card number and credit limit?
2) Is there a way to keep it as the same account so that I don't lose my long credit history with the card.
3) Do you get bonus miles?

If anyone has any experience it would be very helpful. Thanks.