Life Insurance Corporation of India [LIC] — for money issue

Address:

Visakhapatnam, Andhra Pradesh, 530029

Im normal middle class people some agents are preserving and give 1 policy by lic with receipt i was paid the 12500*3 years =37500 now im very critical position so im asking for cancelation my policy and give back to my money then they ask ok give your bond some signatures and take now.. The amount is came but only 22000 is im paying 37500... Now what can i sir...