[Resolved]  Reliance Prepaid Mobile — Special Lifetime Tariff voucher Rs 550

I had charged my phone with life time validity special talk time vouchar of Rs 550 few months back.
As per this vouchar special talk time rates were applicable.
When my talk time was reducing rapidly i checked call rate and I found that Call rate were deducted at normal rate , not as per special tariff rate.I contacted company but their reply was my phone was recharged with other vouchar so STF expired.

This is nothing but cheating.
When company advertise that this tariff is for life time how can they withdraw ?
I have complained to company but their response is poor.
I have not received even message that my STF is withdrawn or anything .
Authorities should look into such type of cheatings by operators .