Move from Free to paid version

I have now purchased a license but I cannot see anywhere to change from the free version to the paid, I have seen on the help that I should bee able to save the accounts I have made but it does not show up on the free version. I have downloaded the paid version but I get the message “The uploaded file exceeds the upload_max_filesize directive in php.ini.” when I try to install it. If I click on upgrade on the plugin it wants me to pay again.

Suggestins please (I do not want to change my php.ini )