<human>: Can you provide a brief rundown of the text in within 3 sentences?

I am planning to visit Chennai next year and need a hotel near the airport in mid-June. While searching the various booking sites I found a great price on  for a single at the Westin Velachery of 3230 INR including taxes, about half the price shown on other major booking sites or the hotel site. I also found the same price on  Further searches found the booking agencies are Indian, have been around for years, and seemed legitimate. 

I decided to book on Travelguru. After going through the usual process, I reached the payment page. I inserted details of my card and reached the visa verification page. After a delay it returned me to the visa detail page with an alert that my card 'may be invalid'.  I re-inserted the details and tried again and went through the same process. To cut a long story short I skyped the company and, after periods on hold, disconnected calls and mounting frustration eventually reached a person who advised me that only credit cards based on Indian banks are accepted. He also told me that it was too early for June 2016 but could not explain why the prices for all rooms for that date were on the system.

Being a sucker for punishment I tried the same process on Yatra. Instead of looping at the visa stage  the 'do not refresh while we accept your payment' page froze until I gave up and cleared it.  

The good news is that my cc account shows no charges were made. I have since discovered Yatra owns Travelguru.
<bot>: You cannot pay for bookings on Yatra or Travelguru unless your credit card is Indian. Non-Indians should not waste their time.