You are paying too less.
1 captcha solving will take average 5 seconds minimum, so :
1 captcha = 5 secs = 40 sats (2 dogecoins)
1000 captcha = 5000 secs = around 1:25 hrs = 40000 sats = 0.45$
2000 captcha = around 3 hrs = less than 1$
So, you are paying less than 1$ for 3 hrs continuous work.
no exchange mrai,one can be be worth exchange 1mrai=100 satoshi,now average 0.3 mrai = 1 claims = 1 mrai = 6 dogecoin = 120 satoshi am risked 1 captcha solving will take average 5 seconds minimum, so :
1 captcha = 5 secs = 40 sats (2 dogecoins)
1000 captcha = 5000 secs = around 1:25 hrs = 40000 sats = 0.45$
2000 captcha = around 3 hrs = less than 1$
So, you are paying less than 1$ for 3 hrs continuous work.
can 10000 claims + 100% bonus = 4 dogecoin = 1 claims = 240 satoshi 1 mrai
