I had a free trial. I already requested for cancellation but it billed me since i saw it in my card. Will i receive my refund?

This is a public forum, not Adobe support... other users can't help
This is the correct way to contact support
https://helpx.adobe.com/contact.html?rghtup=autoOpen

- and enter AGENT in the box asking How can we help you?

to check your account, use https://account.adobe.com 

If your cancellation was successful the first time you would not have been able to do it again. So do the following

• Check your account to see what all you are subscribed to. Cancel whatever you don’t need
• If cancellation is successful. You will get a confirmation email
• For refund rules check out the following article https://helpx.adobe.com/account/individual/terms-policies-and-regulations/adobe-subscription-terms.html