I'd say you got 20, some providers have a bit of delay but you will receive them. And if you are not, just contact Support and we will investigate.
I tend to count the boosters lol that's been since lot of time ago, the video that give the booster usually is not everyone here, maybe 1 of 3 videos seen give it, sometimes 1 of 5, and, few days ago 2 between 20. Will try to save screen capt' and send to support next time.