This is simply a name change. You will start to receive letters and bills with the Source for Business branding and logo on, and that’s it. South Staffs Water Business hasn’t been sold or taken over; it’s still part of Pennon Water Services Ltd.
Your wholesaler will continue to be South Staffordshire Water, that doesn’t change. So they are still your point of contact for any issues regarding interruption of supply or a burst water pipe.