Hai guys, I jus need your help. I jus purchased a new apartment (140K) n my loan can only go until 70% (cos of other commitment)

I have paid de 10% upon signing de s&p. My question is when do I have to pay de remaining 20% to de developer, isit before bank make their first release to de developer or after they have released all de money then i pay de 20%.

10Q a lot for ur helps.