You must have version of component not lower 3.5 to make update.
If you have version less 3.5, update for you may be will need do manual, and we will ask money for do it.
Before making any upgrades, make backup yours site( files and DataBase). With that you will not lost something important
Please do full XML export.
At first please check upgrade/update process at the test website!
If you have custom changes of component or site, you can lose your changes.
Please, in that case do not make update.
And How can we get the code for the renewal discount?
Please send, your order details, to our contact form.
If you would like any further information, please do not hesitate to contact us too.