Reliance Fresh — used ola coupon given

Address:

Mumbai City, Maharashtra, 400054

Hello,
Reliance fresh had an offer going in the month of january stating tht if shopping worth 1000 is done an ola voucher, a. Free tide worth 75 would be given..
But wen i tried using the coupon today it says already used.. When the validity is till 23 february 2018.
Another complain is just because it is it 350 character it says its unlikely to be resolved..
Its such a shame that a company like reliance is luring customers at the name of giving fake and used vouchers...
When some one is trying to post their complaint in an easy short way, why is it not acceptable..
If that is the case i can make it as long as u wish..
Hope the query will be resolved soon..