Give Life Trust — Donation amount but not received 80G certificate

Address:

Hyderabad, Andhra Pradesh

I have made a donation of 1200 on June 13, 2014 into account #[protected], SBI, Yellareddyguda branch. I have received SMS from mobile #[protected] and Sadhana called me from mobile #[protected]. It has been five months I made the payment, haven't received 80 G certificate. Also I spoke with Sadhana once after transferring amount, she responded as "she left that trust and she will get me certificate. Nothing has been done so far.