Interleaving change not requested

[#1]

I am at somewhat of a lost re: Email from support copy below :-
On Fri, Jan 25, 2013 at 3:45 AM, Plusnet Support <support@plus.net> wrote:
    Dear Mr Robson,
    Account username: jeanpbill
    We have asked our wholesale broadband suppliers to turn interleaving off at your request.
    The stability of your service may suffer as a result of turning interleaving off. If you have problems and want to turn interleaving back on, you will need to use the Broadband Fault Checker at our website - http://faults.plus.net/
    Interleaving usually takes 24 hours to turn off, but can take up to 5 days to take effect.

    Kind regards,
    Plusnet Customer Support
    http://www.plus.net/
    Email ref: E0105
I have not requested Interleaving to be turned I did place a change of product to move to Unlimited.
I have not received any confirmation of this being acted upon can PN look into this and advise.
Tks Bill R 

[#2]

Hi Bill,
The order to remove interleaving was part of a problem that occurs when you've upgraded your package, I've checked over your line and it looks like your connection will be fine without it. If it's not we can place an order to have interleaving switched back on which takes one working day.
Chris

[#3]

Hi Chris thanks for the prompt reply, did not realize the change had started, should have waited !!
Will see if I need to turn interleaving back once things have settled.
Again thanks for the prompt service.
Bill R