I just received my statement with an $85 renewal fee from Chase on my United credit card. When I called Chase, they gave me some choices to keep the card. The first choice was a statement credit of $100 if I kept the card. The second choice was a 15,000 retention miles bonus if I spend $3000 in 30 days. Since I have some heavy spending coming up, I took this deal. No brainer. A total of 15,000 + 3000 = 18,000 free UA miles. Don't forget, call the credit card company. Don't leave any miles on the table.