Bought a maker with CO2. Thinking that it was a trade in when the courier took my brandless one. So, when the maker came, it came with 2 extra 0.5L bottles as well. Texted seller on why I did not receive the S$20 gift card, was told I did not click on the trade-in link hence the 2 free bottles was given. Can't blame anyone except myself and just forget about it. A week later, to my surprise, a digital gift card was sent to my email by DRINKMATE. Thumps up to seller!!!