Agoda *****ing money

Agoda is terrible. We tried to book into a hotel and they cancelled it twice due to a technical error their side. So we then booked into another hotel through them which was confirmed and paid. Then we got notification that suddenly they had booked us into the first hotel confirmed and paid. leaving us double booked and both payments gone off the bank account. After contacting them, they are making excuses. Firstly their customer service does not understand English very well and keep assuming that we booked twice and was not there fault. Once proven that it was, then the excuse changed over and over till now they are trying to say that it was two different accounts with them. Amusing since it is all sent to the same email and on the same agoda account which proof has been sent. They are just determined to take my money and not acknowledge their mistake. I want our refund immediately as they booked us into that first hotel without our permission after they had cancelled it twice.