Multiple accounts and moving home

[carparks]

My parents are moving home from House A to House B.  At House A they have had multiple different Sky ID's using different email addresses over a number of years, but currently have an active but out of contract Sky Q subscription.

What is the easiest and most cost efficient of doing the following:

1. Cleaning up all the Sky ID's
2. Getting Sky Stream and Broadband into House B?

I've tried placing new orders or switching them from Sky Q to Glass, but i hit brick walls due to the multiple account issues.

Thanks in advance

[PandJ2020]

I'm afraid they'll have to call Sky to arrange this...