Refuse to reimburse expenses caused by the airline

I was travelling with my 3 year old son. The airline cancelled our flight without any communication or warning. After 1 hour of trying to get someone to assist they advised that I need to book accommodation and just claim it back from the airline. After booking accommodation and getting a taxi I have submitted a claim. It has been a month and a half now and I get absolutely no feedback from them. I have contacted them and was advised to do a claim online they can't assist. I have done a claim online then I was advised that I have booked through Kenya airways and it was a connecting flight (OPERATED by KLM ) i need to claim from kenya. Kenya advised I need to claim from KLM. Your service is absolutely not existend.