Property24 take people's money and don't deliver!!!

I purchased a property report from Property24 this morning and did an online payment. The payment has gone off my bank account. I also received a reference number from Property24 verifying that my payment was received.

I have not received an invoice nor the report which I paid for. A short while ago I got a call from Property24 advising that they had not received my payment and that I should send them proof of payment. What part of an online purchase do they not understand? My reference number which I provided to them is my proof of payment.

Don't do business with this company, they are *****s!!!