If your looking for a shared hosting reseller package and you want the company supplying you the service to be 'anonymous' in the background then WEBFUSION (part of the Host Europe group) should be left well alone. Here's some for examples:-
If your client trying to login to his/her contol panel has forgotten there passowrd and use the 'help' link provided to retireve it they will receive an email from email@example.com
The control panel is riddled with mentions of their contol panel brand name 'MyServerWorld' and even a link to the login URL https://myserverworld.com
(just in case you are thinking of creating your own login page/URL).
They have some other nice touches like mentions of mail servers in the form of neon.webfusion.co.uk , oxygen.webfusion.co.uk etc. Bit of a giveaway heh!!!
Seems like more of a conspiracy than a case of overlooking some issues!!!!
Apart from that my experience has been that their support ranges from reasonable ( depending on who you get) to absolutoely laughable. Their accounts department takes money from your account that you don't owe sometimes, although I must confess this has happened to me in a long time so maybe they have got their act together now in this dept.