Hi Priya:
What are the services have you created, can you check? also search for cost analysis service from portal.azure.com and go through to see what are the services that has been consumed. If everything was good but still you feel you have been deducted amount wrongly, please raise a support request with azure if you have a proper support plan.
Please 'Upvote'(Thumbs-up) and 'Accept' as answer if the reply was helpful. This will be benefitting other community members who face the same issue.