O&O defrag 18 Cost

[Gurdil]

I have a licence to O&O defrag 17, at the start the program propose to upgrade to version 18 with a possible fee.
Do I need to buy the new version at full price?

[Brigitte (O&O)]

Dear Gurdil,

Please contact sales@oo-software.com with further information (license key, purchase date).