Phone Out of Stock - no ID account yet so can't contact to query

Hello, don’t know if this will do anything but I don’t seem to have any other option.

I have just ordered an S21 Ultra and have received a follow up email to say it is out of stock.  If I don’t want to wait I can apparently “contact us” but I can’t access the live chat feature as I don’t yet have a mobile number or an iD Mobile customer service pin.

I don’t mind waiting if it’s a reasonable wait, but I just want to check that the contract won’t start or be paid for until the phone is dispatched.

Any idea how I can communicate with ID to find this out and cancel if the wait will be too long?

Thanks,

Josh