Hey @Bingo_28! Welcome to the community.
If you've cancelled your account, then you should normally receive one final invoice afterwards unless there's a balance remaining on the it.
If it's a positive balance, you'll need to make a payment for that amount and your next invoice will be the final one.
If it's a negative balance, you'll need to contact us here to refund the amount to you.
Can you confirm what your balance is please?