Club Mahindra Holidays — Useless purple studio membership

Address:	600002
Website:	www.clubmahindra.com

I have useless purple studio membership, i am using word useless because whenever i need to book a resort i get message on date selected
"hi, we regret to inform that your waitlist#517949 placed @ resort:club mahindra could not be confirmed. Visit www.clubmahindra.com to replan your holiday"
Please see the pics attached here.
They told me that if i take purple membership i will be able to book a room in any resort just 3-4 days before the departure i can plan and book, they have approximately 50 resorts and in each resort they have approximately 60 odds rooms so total 3000 rooms they must be having all over the world and members nothing less then 10 lakhs that is one million members so 1 million members against just 3000 rooms? Just calculate the ratio and chances of booking getting confirmed is almost zero percent 0%.
I am really sick & tired of their booking system and never successful in getting confirmation of a room in any resort and i can't keep on booking 4 months in advance as i can't plan a holiday 4 months advance, i need permanent solution to this as they had told me that whenever i will book under purple membership i will get confirm booking which is not happening actually and club mahindra people are liars, i need solution or else i need my money back along with interest whatever i have paid them till now.