Greetings from Amazon Seller Support,
I understand your concern that there will be a change of IP address.
Thank you for your kind information and your update. If there is any problem regarding this please write back to us.
For your information there will be no problem with the change of IP
address. Generally we can open an account form the any other IP address.
Hope this information's help you. If you still need any help, Please write back to us.
We want you to experience success in selling on Amazon.
Thanks for patience and understanding in this regard.
Have a great day!