Here's the deal, I am leaving Swiss (

) and going back to India in less than 10 days from now and I just realized my cell phone (nokia basic model, Sunrise) has 118 CHF balance which I won't use. I am not sure what I was smoking when I recharged it last time because i knew this would be my moving date like 8 months ago
This phone (with sunrise connection) I bought it off a forummer some 2 years back, we had to go to Oerlikon Sunrise counter to effect the transfer of ownership.
What are my options to get back at least some part of the balance back? Is selling an option, or at least a partial refund possible?
Thanks for any tips