@swati38356747nvfo
The free trials are for 7 days, not one month. They convert to a paid subscription if you don't cancel within the 7 days. You can get a refund if you cancel your plan within 14 days. We can't see account information; you'll need to contact Adobe Customer Care.
I've moved your post from Using the Community to Account, Payment & Plan.

To contact Adobe Customer Care, try the link to auto-open the Chat:
https://helpx.adobe.com/contact.html?rghtup=autoOpen
Type "agent"
If your browser blocks the Chat window, try the troubleshooting tips here:
https://community.adobe.com/t5/creative-cloud-services/how-to-contact-adobe-support/td-p/11875703
You can also send a post through X (formerly Twitter) to @AdobeCare.
Do not reply to PMs, which are likely to be scammers.
Jane