Thomas Cook India — excess amount taken

Address:	Mumbai City, Maharashtra
Website:	www.thomascook.in

I booked my switzerland tour with thomas cook in the month of june for travel dates in july. I made my initial payment of 50% amount on 13th june then when they were making my hotel bookings after 15days they are asking me to pay remaining amount for which the total had changed because the euro rate had changed that day. I have no idea what was the whole meaning of finalising the package and paying the initial confirmation amount. So when i made a lot of phone calls and refused to pay any extra amount they gave up and did what they had to but then just 2 days before my trip they are asking me to pay rs.10118/- only then they will release my hotel vouchers and my swiss rail pass without which i wont be able to travel.
And on asking for an explanation for that amount they gave me stupid illogical reasons like taxes/difference in rate of exchange also gst while i had already paid my entire tour amount in june itself (For which i have all the reciepts and mails) and gst was applicable only from july.
I was supposed to leave monday night and they are telling me this on saturday when their offices are closed on sunday they even sent me mails saying they will only release my documents on monday if i make the payment before 12.
So finally on monday i had to get in touch with all possible people right from nasik office to their manager somewhere in mumbai and the ones who were inititally involved stopped recieving calls or replying to mails but somehow we tried to get hold of the things and finally i got the vouchers on mail just before i left for the airport and the rail pass i got only when i reached the airport.
And now when i have been asking them for my invoice since august they still havent got time to send me one invoice because somehow they have taken extra amount from us and they have no explanation or rather they have stupid illogical excuses to give for that.