I guess you need a travel agent. I have good experiences with Chan Brothers, 150 South Bridge Road, #07-01 Fook Hai Building, Singapore 058727, phone + 65 6438 8880. An agent that has been helpful to me is Jimmy Lim, [email protected]
Alternatively, use Mango Travel at 16C Trengganu Street, Singapore 058470. Phone + 65 6224 3171 ask for Clarence Tay or e-mail [email protected]