Email from HK Electric.
I've signed up in the first round last year, donating the incentive to a green group:
eSubscription - $30 Incentive - E-bill promotion
Dear Sir/Madam,
To promote a low carbon lifestyle, the HK Electric rewards eligible customers who opt for receiving e-bills between 01/04/2013 and 30/09/2013 a one-off $30 incentive to set off electricity charges. Customers may choose to receive the reward on their first e-bill or to donate it to one of the designated green groups via HK Electric.
Please refer to the Terms and Conditions for details, or call our e-bill promotion hotline at 8102 0123.
Please visit:
eBills Promotion