Reliance Jio Infocomm — add on offer expiry.

Address:

Bangalore, Karnataka, 560040

My jio number : [protected].
Yesterday i got recharge of rs. 498 pack. Subsequently i rec'd message of add on offer for 5 gb. Yesterday i redeemed it but used only part of it.
Today when i checked this was not carried over. Contacted helpline where they gave answer that since it was redeemed when old plan was running the would expires along with expiry old plan. This is ridiculous. Unfair. Plz the remaining data should be carried over.
Arc