Spice Jet Airlines — Regarding credit shell

Address:

ROLLA SHARJAH, ROLLA STREET

I booked a ticket from mumbai to dubai on 16th july 2020 but due to government restriction the flight was cancelled and spice jet airlines not give a refund back but to provide a credit shell of that amount.
Actually i am working in dubai and come in dubai on 20th july and my contract of service will two years so i can not travel to india for upcoming two years.
I want to redeemed a credit shell to make a new booking of someone else.