Club Mahindra Holidays — 2 nights not received back after cancelling as per system of free cancellation

Extremely disappointed as i booked 2 nights from 01/06/22 under special offer where 2 nights i cancelled as per system shown in booking app and even sms received of 2 night balance but they are not giving as saying special offer valid till 12 april ..but before cancelling it didnot show any loss of nights so cancelled pls see image of sms received and this 2 night balance they are not giving so why should member suffer due to system error in application of showing 2 night balance after cancelling 2 night not showing and in system 2 night balance sms is coming. Please give 2 nights of special offer and improve your system