Hey @Satsuki_36476 , Welcome to the 3Community 🙂
If your top up has already activated the plan then unfortunately we would be unable to refund this second top up back to your card however pop through to me here on PM along with your full name, mobile number, address and date of birth and I can check the account here for you.
As you're new to the Community you'll need to increase your rank to send PMs. You can increase your rank by commenting on posts, creating new posts, & kudos/liking comments. Once you rank up you'll get a message to notify you & you'll need to log out & back into the Community & you'll be able to PM us directly. Or if you'd prefer you can contact customer care on 1913 or by clicking here to chat to our messaging team.
