Just as I mentioned in that topic, in the beginning of the next week (in 3-4 business days) the problem will be fixed and we'll make it MUCH more convenient for you to get correct results instantly with the minimal user interaction requirements.
It's still not fixed. The problem has been there for more than 10 days. As a paying customer, this is utterly disappointing. The worse you could do is to roll it back to an earlier version.
What version are you using currently? Where exactly are you encountering captcha - during rank checking or during KEI calculation? You may see captcha only in two cases - if you are temporarily blocked by Google (which is not often at all, especially if you use Preferences -> Search safety settings -> Human Emulation), or if you check KEI with Google AdWords - but then it's one captcha per ~100 words. Do you mean you are getting it more frequently?