Hacked account, intruder ordered Transaction via PayPal

Hello,

I've been charged with a monthly fee for Adobe Stock subscribtion, that I discovered inside my PayPal account. 

I never subscribed for this, this transaction was not done by me, and I never used the service itself, short of creating Adobe ID.

I never received any emails or notifications on my PayPal app. Can somebody please explain, if it is not my stolen Adobe ID (I changed the password as soon as I discovered this transaction), what are other options?

Thank you

Anna