Unable to register account as login crashes & change delivery date

Hi,

I have tried to create an account through the welcome however every time I try to create a password my browser gets stuck and times out/crashes.

Is there a solution that I can use?

I also have ordered the VM router to arrive at my new place however there will be no one at the property to receive it on the delivery date.

Is there a way to change the delivery date?

Thanks in advance!