Just passing by. Completely unrelated.
"вашего" also could be used as a polite form in case if you are talking to a stranger, someone with a higher rank, elderly people or just want to show your respect even if you are referring to a single person. It's incorrect to say there should be indication of a plural, but for sure there should be some kind of hint about a polite form.
One day the real world will meet your expectations, but not today, sorry. Only a few courses are close or over 5000 words. The only thing you can do, is to direct you frustration to the official support channel (I assume you are paying customer as you were able to go past 3000).