It's all just ethereal talk. Were, were not... According to the statistics, you had 8, 64, 41, 35, 21, 1 trader per month. As you can see the decline, apparently it was reflected in the accrual the same decline. It is not surprising that in the first month was the most traders and it means that most of the accruals were in the first months, then the decline - the decline in accruals.
The income on your account is quite consistent with the number of traders per month and deposits. In the last month, a drop in these values means a drop in income.
I don't even know what to tell you. You get charges for March and April even.
>If you were paying normally, would it make sense for me to write a negative review here?
The understanding of normal and not normal at the same time is completely ethereal. You get paid everything according to the rate.