Another 400 yellow bricks arrived today - I was 100 short but they are only sold in full palette quantities.. The delivery driver also moved my ’spare’ red bricks to a less prominent location - all 900 of them!

Over supply of the red bricks were down to a miscommunication of the palette quantity - I was told 400, so I purchased 10 palettes.. In fact each one held 445 so I ended up with ‘an extra’ palette. Apart from this, I was absolutely spot on with my estimation