I received.
I am just curious that why did you receive it in different batches over different days, not in a single transaction. Is it the rule of the give away on Coinbase for all participants or just only you? I saw the give away months ago, but I don't join it because I don't think it is worthy to lose my identities for only $25. Anyway, congratulations for your received give-away from Coinbase. In other aspect, Stellar has risen more than 30% and currently traded around $0.15 or 1890 satoshis on exchanges.
That's not me... but I can answer...
It's different rewards.
There are like 4 videos you can watch, they each get you $2.
Then you get up to 5 referral credits of $10 each.
Each reward is its own transaction.
(As I was already a verified coinbase customer, because I used it as a fiat to BTC onramp, I had nothing to lose. Also, I didn't "lose my identity").