We CANNOT guarantee that this software will work after any future updates for the iphone.

ENGADGET: iPhoneSIMfree begins fulfilling bulk orders, apparently will not unlock end users' phones

Due to the high number of e-mails we get we cannot guarantee to publish every single message we receive.

BBC: Your comments

Since most shippers are closed on Christmas eve and Christmas day, we cannot guarantee overnight shipment to you for Christmas day.

ENGADGET: PlayStation 3 charity auction -- 2 days left!

We cannot guarantee their success, and at some point they may stumble.

WHITEHOUSE: The White House Blog: The President

We will keep you updated with important investor developments as they arise, but we cannot guarantee the duration in which they will be posted.

FORBES: The Truth About Kickstarter and ZionEyez

We cannot guarantee bad things will never happen again.

FORBES: The Problem Isn't Just the NRA -- It's all of us

"Sometimes you bring someone who needs to settle down or they have a problem - this year we had a problem with Alberto Aquilani and his ankle - so you cannot guarantee anything, " Benitez said.

BBC: Liverpool step up search for fresh investment