Just for comparison about the weekly bonus as what I received: $17 on June 28th, $15 on 5th July and $10 for the last weekly bonus. The amount keep on dropping every week while yours was increased on the last week (even doubled).
Stake is doing discrimination with me

. I was clueless after claiming the last weekly bonus, the amount had surprised me. I was expecting a better amount from the monthly bonus after getting the weekly bonus like that without any deposit and wagering activity. I guess they adjusted the monthly bonus amount as they gave me better weekly bonus without any reason.
You will receive around $7 from the next weekly bonus if you don't wager above $1k before the next weekly bonus. Maybe you are a favorite person of Stake marketing team as you receive more with less wager

.