I accidentally upgraded the wrong account

I accidentally upgraded the wrong account. I thought I was logged into my other account. How to do cancel the one or transfer it to the correct account?

the account I accidentally upgraded was christopherkallal and I need it to be puppetman723 instead. Is it possible to transfer?

I'm sorry, but we cannot transfer the subscription. But I have refunded the payment. Expect the refund returned to the card within 4-10 business days. Please login to the correct account to upgrade.