Hi Gaurav,
Thank you for contacting the Microsoft Community.
It is definitely unusual for the exam to be revoked despite following the break policy. Allow me to provide you recommendations about this concern.
Yes, it is indicated in the Frequently asked questions (FAQs) about online proctored exams page that breaks are allowed as long as there is an option to use it.
With this, we highly recommend calling the Pearson VUE customer service hotline so they can initiate an investigation. They also have direct access to your appointment where they can provide recommendations such as rescheduling the exam or other options. Please see their contact details by accessing the link below:
Customer service :: Microsoft :: Pearson VUE
Once the investigation starts, Pearson VUE will give you a case number then one of their team members will contact you through email with the outcome of the investigation. Estimated time of their response is within 2-3 business days.
If you have not received an email from them after the given timeframe, kindly let us know.
I look forward to your response. Please note that if no response is received after two business days, the case will be closed and locked. After the case is locked, we will no longer be able to respond, even through Private Messages. Thank you.
Best regards,