This month payout is for BAT earned in March (1-31). And BAT earned after that (1-30 April) will be paid in May.
I assumed you’ve a verified wallet and it’s paid to your Uphold account? Or an unverified wallet?
The answer for both is similar. Each wallet will have it’s own payment.
So if you’ve 3 verified wallet, you’ll see 3 transactions history for each device on your Uphold account. And if you have an unverified wallet, it’ll be paid to each wallet separately.