Just so you know:
Yann Penduff said: …
I’ve read reports that it seems to take 2 or + weeks for the 1TB promotion to take effect.
Source: Local Guide – Level 4 (1TB on Google Drive) – Google Product Forums
In practice it’s usually not that bad as most of the times it’s a matter of days not weeks though it can take up to 5 weeks.
It’s nice to be a Google Local Guide as you learn a lot of new things and people that way for instance through the Local Guide events.
If you’re interested, read Level 0-4 in 40 days, what I’ve learned from Google Local Guides – Pocketables
I only discovered about this a while ago as it was early last year for Google Replacing City Experts with Local Guides Program | Understanding Google My Business & Local Search
What really helps contributing is to view your Google Maps Timeline
–jeroen