All these advertised "schemes" of payments are nothing more than loan packages. Although the advertisement states "no payment until vacant possession", in reality the buyers' loans are "locked-in" with panel banks/financial institutions and hence, buyers' housing loans are used to pay the developers as they construct the houses.
It is based exactly on the current sell-then-build (STB) or progressive payment formula. This formula has got so many house-buyers into trouble when the houses they buy are abandoned by the developers.
The only difference in the advertised system is that the interests towards the progressive payments are shouldered, absorbed and borne by the developers. Buyers still have to secure their end-financing housing loans as soon as they sign the SPA. Buyers are still responsible to the banks and financial institutions for the loans whether the houses are delivered or not..."