Wasted money complaints ignored

My husband took me on a surprise romantic getaway for our 1st anniversary. Unfortunately despite the accommodation being advertised as luxury with aircon it was a flat on top of someone's garage and although it was beautifully decorated it was hot as hell and there was no aircon. We did not sleep the first night and phoned lekkerslaap in the morning to tell them the accommodation was not as advertised and was so uncomfortably hot we could not stay the second night. They told us the bed and breakfast owner had falsely advertised the property and they would refund our money for both nights (even though we said we only needed a refund for the night we did not stay). We just needed to send an email explaining the nature of our complaint. We did this and have received no response other than that our email had been sent to the bed and breakfast owner. We consider that we entered into a contract with lekkerslaap that included air conditioning which they have not adhered to and they need to refund us. The B&B owner is their supplier.