Cancelling a PR application

I sponsored my girlfriend for PR status in February/2015 and we are now separated due to incompatibilities ~ she is staying elsewhere for the past 2+ weeks and reconciliation is doubtful. She has asked me to revoke my sponsorship so she will have no problems returning to her homeland in Brazil in June, when her 5 month travel visa expires.
How would I go about doing this? We have sent in the PR fee and forms, but have received no information from CIC at this date {May/2015}.
 
Top