Google One subscription - nearly 3 months lost for trying out Gemini

I was on the 2TB (Basic) Annual plan that was paid until Sept 2024 (at which point it renews again), recently Gemini AI became available and it mentioned there's 2 month free trial with the 2 TB plan I had. I decided to upgrade today to try it out (at no cost), however I did not like it and it's quite slow and inaccurate versus ChatGPT.

I went to cancel or downgrade back to my original 2 TB Annual Plan. Much to my surprise, it now says I have to pay the full 2 TB (Basic) Annual Plan price again mid-June.

I spoke to a few Google Support agents who have said there's nothing they can do, essentially the plan I paid for last year that lasts until Sept 2024 just got cut short until mid-June 2024 for trying out Gemini for literally a few hours, and there's nothing they can do...

Anyone have a similar experience? Feels like I've just been robbed by Google.