Sorry to hear this, the first place to check is in your spam inbox, several email providers have been known to block our mockup emails.
We have tried searching for a solution for this but have yet an answer to resolve the problem. If can still not find your mockup please contact us via email at hello@missbolddesign.com.au, our contact page, live chat or phone with your order number, and we will follow this up for you ASAP.