call to collect free gift voucher

Location/place: kalyan

Name of company/service: club mahindra holidays -metro junction, kalyan

dear sir/madam

i received call from company that i am selected for gift voucher to stay at club mahindra holidays for 2 nights. i was surprised to receive this call i asked whether i have to pay any money? they said no it is free, i am doubt, then again i call and ask i am not interested if you ask for any investment proposel and the end of discussion they said NO. if you don’t like you can get the gift but you come with family.
after reaching there to took one form filled by me start explaing their schem and concluded with i have to pay 10% amount of 26500 rs. i told them i am not able pay now by any form i.e card cheque etc. but keep me forcing to pay with insulting manner. i protest club mhindra for this kind of fishy calls and insulting behavior.
request to make other aware from this type of calls.
regards