Daylight robery at Ramsgate Guesthouse

I booked 4 nights 1 room for two people in Ramsgate Guesthouse from 14/12/17 - 18/12/17 via booking.com early in November this year 2017. Bookings were confirmed via email and calls with Annelise who happens to be the manager, she then requested me to deposit 75% 15days before arrival. I did as she requested and e-mailed her proof of payment. She didn't confirm the payment or the email for a week, i then called Anni to check if she received the proof of payment. Came the 14th my fiance and myself travelled to Ramsgate Guesthouse for our vacation. We arrived just on time for check in, she then asked us to fill in the personal information form whilst she gets the invoice to pay the 25% remaining. When she came back she told me that i had only reserved for a single guest and i need to pay R3300 for my fiance, to my surprise i thought she was joking. I asked her to show me the booking online because i wrote notes as special requests. None was available to my surprise and she forced me to pay this amount or find another place to stay. Mind you that we are from Pinetown travelling by public transport, plus we had already bought groceries for the stay. I refused to pay the amount she wanted and i asked if she could give us a discount since we there already plus basically sharing the same room. She refused saying that she can't let us stay at Ramsgate Guesthouse period and refunded me the 75% and chased us away like dogs. We had to hire a cab to help us find another place to stay which made our first trip to Ramsgate horrible. Holiday *****s please be aware of this daylight robery.