Add missing callback call

Jira issue: WP-956
Corrected call to decision storage.
Jira issue: WP-1070
Merge pull request #20 from felixjendrusch/wp-956-missing-callback

Add missing RPC interception callback call
Merge pull request #21 from steverc/WP-1070-wrong-decision-stored

Corrected call to decision storage.