Reliance Jio Infocomm — my voucher

My mobile no. Is [protected].
As per their offer at the time of recharge i am entitled to get discount of rs.50/- per voucher if i recharge from my voucher of their mobile app, but after recent hike of tariff they are not giving the said discount at the time of recharge from my voucher of their mobile app but asking for redeem the voucher. Even after redeem of voucher i am not getting the said discount.