Issues a reward certificate based on the member's request or when the points in the member's account reach a configurable threshold.
Note - A single reward is issued at a time.
When the redemptionChoice is set to 'auto', the points are automatically converted to rewards. When the redemptionChoice is 'bank,' the points are converted based on the member's request.
Response of this endpoint includes a redemptionCode, which is required to redeem the reward in the future.