Jio continues surprise cashback offer till 2018, increases the amount to Rs 3,300.Jio has continued the cashback to the new year 2018. The telecom company is offering a surprise cashback of up to Rs 3,300 on the recharge of Rs 399 and above. It has increased the cashback offer from Rs 2,599 to Rs 3,300 on the recharge of Rs 399 and above. The offer will be valid till 15 January 2018.