I have tried throught the link: www.united.com/ual/pt/br/fly/mileageplus/offers/promos/TB9234.html
using Smiles Diamante status on 01/07/2020.
Received today the answer:
De: "MileagePlus Program" <MileagePlus_noreply@united.com
Assunto: There's good news regarding your Premier Status Match request
You've been awarded a trial period of Premier status!
Take off with your new Premier Gold status trial
You've been awarded a 90-day trial period of MileagePlus® Premier® Gold status valid until April 30, 2020.
To maintain this status through the rest of the year, simply fly 6 Premier qualifying flights (PQF) and earn 2000 Premier qualifying points (PQP) on our United® or United Express® flights between February 1, 2020 and April 30, 2020.
We'll be in touch once you've met the requirements. Shortly after your trial begins, you can explore your available benefits as well as track your progress at mystatus.united.com
Thanks for choosing United. We hope you enjoy your new Premier Gold membership benefits.