The official communication from Fibank is attached as reference here.

Synergy is now the premier Oracle Gold partner in Bulgaria and in the years since its founding has proved itself as a reliable and knowledgeable counterpart to the banking industry in the South East European region. The implementation of Flexcube 12 is a ground-breaking achievement, the first successful implementation in the South East European region, which puts Synergy among a select group of Oracle partners to have achieved such status. Synergy and Fibank set another first for such implementation, with only one day down time during the official national holiday.

Together with the previous successful installation of Exadata, Synergy has proven itself as the leading implementation partner of both hardware and software solutions from Oracle. For Flexcube in addition to full implementation at a bank site, Synergy offers banking side consultancy services.