Tyk rate limit api

So i needed the quota remaining for a given key. So i used the answer given in this thread How to get remaining key quota? The path being GET /{listen_path}/tyk/rate-limits/ This is a beta feature as per the thread. This endpoint only returns the quota decreased by 1 value even after you have accessed the api more than once.

The response shows remaining quota but there is no quota left as seen in this image.

Please suggest a work around or point out an error.