A customer pays for what is advertised

So i made a booking on Booking.com as I wanted to try this place out however when I checked the place out it showed me it was R100.... I continued booking paid it for one night. Then I received messages via WhatsApp telling me they don't know how I got to that price I must cancel it as they have the correct pricing. I will not be allowed onto the premises that day when coming... However I booked what I saw was advertised... It was said she doesn't know where I got that price from it was was not legit advertised and she said please she does not want to have a war of word with me please. She's disrespectful... A customer pays for what they see and unfortunately what I see is what I must get..... It's my right as a customer.... That wasn't the price I expected but that's what I found.. I'm now being forced to cancel the booking and being prohibited from speaking to the owner.. This was not my mistake firstly......