Finally received my transcript yesterday!
It seems that the most helpful people to contact are your Awarding Body who will at least tell you when your transcript was sent out (or when it's due to be sent out). After they've told you that it's easier to go to your university and ask for an extension to a deadline if you need one.
I'm also really disappointed with how poorly my college explained the process of sending results to the university. I feel like I completely lost the college's support as soon as I handed in my portfolio, there was literally no explanation of what would happen after that.