I would like to change my username

It said contact you here.

Greetings and thank you for your message.

I have checked your account, and you have Bronze monthly subscription paid using PayPal. 

Unfortunately, the only way to update your subscription when paying with PayPal is to cancel your subscription, update the username, and then purchase a new subscription.

You can cancel the PayPal subscription from the PayPal account. To read more details, please click here. After you cancel it, and your account gets downgraded to a free one, you can update your username. You can click here for additional information. Finally, you can purchase a new subscription from the Billing page.

Please let us know if you have any additional questions.