Trending @Capgemini; Can we do SAP Certification in CG after putting paper

I have resigned today and I am serving a notice period now. I have received the SAP certification coupon 20 days back, is it ok to use those SAP exam attempts now. Means can I schedule the exam and get certified using the available attempts. Because someone told me that we can't use them during the notice period and if we use it then we need to pay for that. Is this true?