RMA Request response time?

So recently my Cloud II headset's right side suddenly stopped working (looks like one of the small wires going from the speaker to the headband is faulty) and I decided to make use of the 2-year warranty it still falls under to send in an RMA request via the site's Contact Us form.

I had sent the request on August 23rd, but I haven't received ANY response since. How long does it usually take to at least start the process and see if I qualify?