Hi @Reva, good to have you here.
I can certainly understand your question whether it’s possible to place a mixed flavour order, variation rocks! Fortunately, this is indeed possible.
As seen in the topic that you shared, you read that it's possible to place such an order yourself. Due to a little change in our website, this option is currently not available. We're working on this and hope to offer this option soon again.
For now, if you'd like, I can manually create a mixed order for you and place it in your account. All you should do is let me know which products, in which amount and version you would like to receive, and I will then create this order for you. The example you suggest of ordering 7 Banana, 7 Oaty Vanilla and 6 Forest Fruit is possible, as long as the total is 20 or a multitude of 20. As soon as I've created this order, you can easily pay for it from your account and then it will be processed by our warehouse.
If you want me to create a mixed order for you the next time you're ordering, please send me an email at email@example.com!