Hero Electric — Optima scooty

Purchase Optima after paying Rs. 1, 02, 000 to GURU NANAK, AMRITSAR for duel batteries. We got single battery and it was ensured by dealer for second battery will be provided in 4-5 days. It was mislead further by dealer of milage of 70 kms after full charge for single battery. But it just have 55. Today When ask for second battery hot words were exchanged. It is said second battery will be provided after one month. Could not understand when dealer is receiving full payment for duel batteries then why single battery is provided and if it company policies to provide only single battery then what will be the guarantee period . Is it from date of purchase or from date of delivery as my scooty is premises of dealer and we refuse to accept it without Second battery. If it is possible to deliver with duel battery then co firm otherwise cancell my Invoice and refund my money.