Due to my the balance I'm keeping there, I haven't had to fill out any captchas for months. Why the change?

If this is required to stop bots that were somehow exploiting what you had before, that's cool. But... can you please turn down the difficulty a little? Tonight I have been trying for ten minutes to solve the recaptcha. Click all the cars... I AM clicking all the cars. Yet it marks me wrong. I give up for now. I hope it's less difficult tomorrow.