For those who are too late in getting votes, do checkout various helplines below.
(Screencap from 20 May post on Hong Kong Facebook Fanpage)
Below are the links to these FB groups, you can drop them enquiries if any.
Hong Kong: https://www.facebook.com/akb48mayuyupage/ (Selling votes at HKD60)
Taiwan: https://www.facebook.com/watanabemayufanspage (Selling votes at NTD250)
Singapore & Malaysia: https://m.facebook.com/mayussk2016/ (Crowdfunding)