Billed for leaving???

[#1]

Re: Service notice #242801169
I have received an email stating that I'm to be charged for migrating away during contract.
The migration was initiated on the 22nd July just after I received notification on line rental increase.
Can you remove this charge from my account.
Thanks,

[#2]

Hi Jimmy, I've checked your account and can see the notification of the price increase was sent through to you on 20/07/15, however the orders from your new provider to migrate the services away don't seem to have been placed until 01/09/15.
Unfortunately as the migration was started more than 30 days after we sent the notification through, the charges would be applicable.