My original methodology was going to be a 2 part quants study. After a systematic literature review I identified a series of components. I then was able to use a different study to ask one question about the importance of all of them. After a principle component analysis on the results of this, it found that actually there were only 2 real components. This is not what we were expecting at all. Thought there would be some grouping but not only 2. So instead of doing a second full survey on one component, I am now looking to change and do some exploratory interviews to on these two groups.
So question One: is there a name for doing a quants/qual mixed method approach (as it is more commonly qual/quants)?
Question two: Does anyone have any examples of people who have used this method successfully in a preferably marketing or specifically branding based study that I can look at as a reference point?
Yes, a student of mine did the same in a Ph.D. thesis: after quant she used qual to emphasize and confirm the findings. I don't know if there is a special name for such an approach.
This is a widely used design in mixed methods research where it is known as a "sequential explanatory design" (QUANT --> qual). The plan is for a follow-up qualitative study that helps in understanding the results of a previous quantitative study. You can find some version of it (not always under this name) in almost any introductory textbook on mixed methods. I devote a full chapter to it my own text, Integrating Qualitative and Quantitative Methods.
You might simply want to say you used Mixed Methods (see Prof. Pam Sammons' work).
Or you could simply use Descriptive statistics (?) Describing the data - and using qualitative data to reinforce your argument - hope this helps.