Got my cashback cheque today.
Took its time, but it got here and its for the right amount.
You really seem to be unlucky in you dealings with three and e2save.

By the way, I just noticed on the e2save website (its probably been there for a while), that there is a much more detailed guide about how to go about claiming cashback. It tells you exactly what bill to send off and when. I actually sent my bill off a little late but they still sent the cheque.