How can i change student account to lecturer account

Hi, 

The easiest way it to close current account and sign up again as a lecturer. Please backup your documents first.

Here is an instruction https://support.vertabelo.com/pl/knowledge-bases/2/articles/298-how-do-i-convert-my-account-to-academic.

Hello Rafal,

I am not able to backup my documents first before to close my current account.

Could you please check my profile and help me to generate this backup for me