It's likely over but there is no harm in checking I'd say lol. Head over in Fangtastic Freespins by Pragmatic play and there should be a pop up for you to claim, provided the offer hasn't expired yet.
Most probably majority or everyone with activity at some point have gotten some as apparently, someone who hasn't depo'd for a long time has gotten free spins as well.
I have wagered a couple of hundred dollars, probably more than a thousand dollars, and made deposits twice. I also had some points and got some wins back for three days in a row. But I checked the game you mentioned, and unfortunately, there are no free spins for me. It was probably expired because it had already been six days. As far as I know, the free spins have some time limit. For example, Friday free spins have a three-day expiration time. But I am curious: how did you know the game name? Did you get an email or notification? Or did you find that on the Twitter or Discord server?