Schweppes Dry Lemon, the forgotten orphan

<p>Why cant coca cola make schweppes dry lemon in 500ml, 1litre? 1.5litres and 2litres like with all their other products?</p> <p> </p> <p>It's like the orphan of the company and yet it is so delicious! The forgotten one...please can we have more variety with the size?</p>