Can i get a refund for my subscription? I tried the 7 days free trial and forgot the date it supposed to end. And then they deducted 349 pesos today on my card. How do i get a refund please?

This is a public forum, not Adobe support... other users can't help
A refund takes up to 14 days and is automatic if you cancel in no more than 14 days of a trial
After 14 days a trial becomes a subscription and there is no refund when you cancel... so when you enter your payment information to start a trial you need to read everything so you know the terms before you click the button to proceed... if you do not cancel in the proscribed time a trial becomes a subscription and you pay 1/2 of the remaining time if you cancel early
See https://helpx.adobe.com/manage-account/using/creative-cloud-subscription-terms.html

Only you may cancel a subscription
-To Cancel https://helpx.adobe.com/manage-account/using/cancel-subscription.html

-be sure to keep the verification email you will receive when you cancel
Log in and go here to check your account to determine your status https://account.adobe.com

-be sure you cancelled EVERYTHING