Account Closing Confirmation??

[#1]

I'm due to switch Broadband this Wednesday 19th Aug.  However, I don't see anything in my account saying it will be closed on that date?   Should I?   When I switched, the new supplier said it would handle the cancellation of my plusnet contract which was due to end 16th Sept - so there should be a small early cancellation charge along with whatever I need to pay from the date of my last bill up to the 19th Aug when the switch happens.   

Can anyone confirm that my contract will be ending on the 19th August?  

[#2]

@stevenwhit PN will not be informed of or move until your new ISP has successfully taken it over - I think - to ensure that any last-minute hiccups don't leave you without a service. 

[#3]

EDIT to the above post , on reflection.

@stevenwhit Have you not had a 'sorry you are leaving us' message from Plusnet? Your new ISP should have informed PN you were switching, which would auto-generate that communication, but any account closure notices would only be generated once the gaining provider confirmed they had taken over the supply.