Ali Express — unauthorised opening of an account from my id in ali express

I received an email on my id [protected]@gmail.com from ali express mentioning that a product has been purchased from the id. On clicking the link, i was led to the ali express website, wherein i found an account has been registered without my knowledge in the shopping portal with my id. I logged in with the forget password option and found that two watches have been purchased through the account, and the delivery address mentioned is in pakistan. The order is not placed and paid by me. This order should be cancelled and please probe, how an account can be opened without the consent and knowledge of the original user of the email id.