Hey Simon!
As you might have seen we’re actually close to launching a brand-new, upgraded site that will be way more user-friendly and intuitive which is being shown to some users in this testing phase. (You can find our more on this thread here Feedback to Huel Directors: It is time you built and hosted your own website - #15 by Mark_Huel)
As part of this build, we have removed all minimum barriers to order, so you don’t have to buy a minimum quantity of products, or spend a certain amount to be able to check out (we have kept our free shipping thresholds as most other websites). One of the many changes we have made is moving the single samples to the checkout. So you will still be able to add single bottles of RTD, cans of Daily A-Z Vitamins/Energy +, and Complete Protein Bars to your order from the checkout page.
Hope this answers your question 