Use this email templates to answer your users when they make a right request.
Dear [Name of Data Subject]
On the [date of receipt], you asked us to restrict the processing activity concerning your following personal data : [list here the categories of personal data concerned].
In accordance with Article 18 of the General Data Protection Regulations (GDPR), we inform you that we no longer process them, apart from storage in our systems. Please let us know when you wish to lift the restriction of processing.
In the hope this answer will satisfy you, please note that you received this communication within the time limit of one month set by the GDPR.
Best Regards