Hello,

We can change the URL for the account but here are few things that you need to be aware of, 

• The old URL would not be accessible once the change is made at our end - so you would want to inform your customers about this as well. 
• Please make the necessary changes in the forwarded to address under Admin -> Support channels -> Email and also ensure that this reflects in the forwarding set up in your mailbox. 

Please let us know if we can go ahead and change the URL.

Cheers!