BloomChic currently has selected styles under £19 as the lead offer, which is best if you want the lowest ticket price on specific marked items. The page also runs an up to 50% off sale on selected sale styles, which is the better pick when the item you want is already reduced in the sale.
If you plan a larger basket of mixed items: if your cart contains several full price and sale pieces, price each item individually and total the basket. The under £19 selection only applies to the specific marked styles, so it will only reduce those item lines to under £19. The sale offer reduces sale styles by up to 50% on the price shown for those items, so if you have multiple sale items the sale will usually save more across the whole basket.
If you are buying a single marked item from the under £19 range: the under £19 offer applies automatically with no code. For example, on a single selected style priced at £19, you pay £19 (original £19, fixed price to under £19 -> final £19, saving depends on original full price shown elsewhere). This is the cheapest route for those exact styles.
If you are buying a single sale item with a 50% reduction: use the sale price shown, which is already discounted by up to 50%. For example, on a sale piece shown at £60 before the sale, 50% off would reduce it to £30 (original £60, percent 50% -> final £30, saving £30). That will be better than the under £19 offer only if the sale price is under £19 or if you want that particular item.
If you are buying several items that are all from the under £19 selection: each marked item will be priced under £19 at checkout. Totalling several of these gives predictable savings per item compared with full price items that are not in the sale. Apply no code; the price is shown on the product page.
Buying from the sale and the under £19 range in one basket: you get the under £19 price on marked styles and the sale price on sale styles, with no code required. Compare the total you see for the basket to decide which set of items saved you most.
When choosing between the two offers, calculate the final basket total with the under £19 item prices and with the sale prices shown, then take whichever leaves you paying less. There are no codes to enter and no stacking rules shown, so each item will carry the single price displayed for that promotion.