3 Months claim

I've been working for Vodacom in the repairs department for 3 months now and since the day I started I've been dealing with a clients' device that has a built in battery(Sony E4G).<br> The device heated up so much while charging it melted the back cover.<br> <br> I have been complaining at times fighting via mails and phone calls only to get a different excuse every time.<br> The latest excuse is that the device now has liquid damage(obviously caused by condensation).<br> This poor client, being deaf its difficult to communicate and explain what is happening.<br> I would really just like to know why Sony can't provide this client with a new device he had the phone one month and its a built in battery.<br> The phone has been in repairs so much more than in the clients possession.<br> I've booked the device in via Vodacom repairs center they've sent it to SSS.<br> <br> Could I get a response and help also I would like to stop looking as if I'm not doing my job!