If you have wagered more and you also made a deposit as well as you are in negative, basically you should receive more in the monthly bonus. But you said that you got $11 only which is half amount than what I got with lower wager statistic + PnL as well as without deposit for almost 2 months. This is another mystery with bonuses in Stake lol.
I was down like $20 only. My wagered amount was almost 3× of your wagered amount, but my bonus was half of yours. I was surprised by another thing recently. My weekly bonus was $7 on the 28th June, then I got $5 on 5th July. I was expecting less than $4 from the last weekly bonus (on 12th July) as I hadn't made any deposit between that period, and my wagering activity was too low. Surprisingly I had received $14.5 from the last weekly bonus. No one would be able to solve the mystery of Stake bonus system.
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). While we are on at the same VIP level, with not that much difference on the wagering statistic but our bonuses can be said as big difference. I become more confused about the formula of the bonuses on Stake