Understand World of Sports (WOS) is no longer distributing Volkl products and clearing their Volkl rackets at various outlets eg. Tour 6 (S$99), Tour 7 (S$129), Tour 9 VE (S$149), Tour 10 VE (S$159) etc.
Some higher end models like C10 Pro and Quantum 10 Tour can still be found at Sports Interlink, Queensway Shopping Centre. You can also try Transworld Sports.
Hope this helps.
Cheers,
Bruce