DC Rule: Don't like it, call them back!
Wait till DC charges the annual fee to your account, then call Retention Dept and ask for the annual fee credit.
A month or so I called and reluctantly agreed to a retention bonus of 1000 pts for 5 mos as long as a charge was made, no annual fee credit was available. As others have said, call Retention Dept back at a later time for a better offer! Don't mention any previous bonus you accepted, just tell them what you want. If not, call back later.