Incorrect information as to origin of puppy

Sandra Prinsloo advertised a Staffy puppy for sale at R2400 with an extra R340 for delivery. Then there was an e-mail and numerous cellphone calls demanding R4000 as security for a travel box and R350 for the rental. Then there was an e-mail demanding R7500 for insurance for the puppy. Next there was a phone call demanding R15000 for a proof of of viability document as suddenly this puppy is imported from Kansas America which was not mentioed to me in the beginning. Now they are claimimg that the puppy will not be delivered as I have not paid the proof of viability. I am demanding that all my money that has been paid out be refunded. I will attach copies of the e-mails and the money that has been pai so far.