has anyone here had a conditional offer for a PhD and not made the terms yet still been accepted

it depends which conidtions you dont meet. If it is about funding- at least my university, would not accept...if it is about grades- some might have be understanding:)

What's weird about conditional offers for your PhD is that if you've come straight from your MA and the conditions are your master's results, then you'll generally be well into the first year before you officially find out you've passed the master's! I'd imagine your department would be a little flexible but (hopefully) would offer a bit more support and keep an eye on your progress to make sure the first year went ok.