Voice recognition with numbers

The spoken Chinese portions have been driving me a bit nuts lately, specifically in the case of numbers. When there's a part that requires speaking a number, it will often times detect it as the number X rather than the character for the number then tell me it's incorrect.

I'm a bit confused as to why it would detect me speaking the correct number, but still consider it incorrect.

Hi Kevin, 

Thank you for your feedback, it's much appreciated. We apologize for any inconvenience. There is a known issue with the voice recognition and the numbers not always matching; our IT Team is currently working in finding a solution to this issue. In the meantime, please keep in mind that the rating is a suggestion, and if you know that you are pronouncing correctly, you can rate yourself accordingly. 

We appreciate your patience and understanding. 

Kind Regards!

I have been caught be the written tests when we are supposed to write the numbers. Sometimes, it wants us to write 833 but other times it wants 八三三. The writing tests should always expect us to write Chinese.

Thanks for the response. I was unsure if that was a known issue and thought I would bring it up for anyone who might see this as discouraging. Mandarin is my second language and I've been using rocket language as a way of improving myself. I know my tones well enough to know that I'm speaking much of this correctly already.