You need to follow the process specified in the account terms (probably mediation) or file in small claims court to recover the value of the points.
IIRC others have also filed a complaint with the Consumer Finance Protection Bureau as both leverage during mediation/arbitration/etc and as a method of tracking CapOne's activities to see if there's a pattern.
http://www.consumerfinance.gov/complaint/
The questions that many are likely asking include... (and you're under absolutely no obligation to divulge...) what prompted CapOne to query LexisNexis or other databases?