combining 2 sdl accounts

Dear team
I have two sdl community accounts and now I would like to combine them into one to take advantage of the discount offered to SDL vendors when upgrading my licenses.
My licenses are in an old account (under the email > lilianmautone@yahoo.com.br)
The discount is linked to this OOS account. (under the email lilian.alves@loc-house.com)
How can I combine these accounts?
Cheers and thanks for your support