I still haven't received my formal certificate, but I forwarded a transcript of my results from my college to my uni. They wouldn't accept it, as it wasn't a verified document, but I gave them a call yesterday to clarify the matter. I received an e-mail today saying that they're going to make my offer unconditional, but they still need to see my certificate as soon as possible. It might be worth other people that are waiting on their certificates forwarding a copy of their transcript from their college to see if their university will accept it.