I have used Optiontown on VN and found it to work like a charm.
I struggled to print out the confirmation, so I took screenshots of the email on the iphone, as I was not using roaming for data.
However when I arrived at the airport, approached the empty Business line, presented my passport - ah yes mr Adampenrith your Business Class Boarding pass - is already printed for you, just the one bag SIR,
Please turn right for security and sorry no Business Class Lounge Access as you upgraded.
I could not have been more impressed.
I'm sorry the OP had a bad experience, BUT I am not sure if their story is 100% AUTHENTIC