Hi,
I'm sorry but we are not in direct relation with Secure e-book ; we created the integration plugin for HikaSerial for a custom development requested by a user.
That user already had a valid account and he gave us a test account to perform the implementation and the tests.
Last time we had news from him, the plugin was still working fine.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.