Returns department

I bought Sony Bluetooth Headsets (SBH70) and they stopped working after two weeks I received them. I sent an email to orange notifying them about this they never responded, I then called their customer care only then they \processed"my return request sending me a form to complete and a address to send the headsets to. I couriered the package to the address that the consultant emailed me and based on PostNet tracking facility the package was delivered on the next day. I called a week later to find out if my return request has been processed and it wasn't then the lady sent and email to the returns department to update their returns log but they never got back to me and I also sent a follow up email a week later but no response. it took orange 2 weeks to deliver the Headsets when I bought them and only used them for two weeks and its now close to 4 weeks since I sent them back and I don't know If they're being repaired or replaced even when I call the call center it seems like they also ran out of options when it comes to my package."""