Airbnb place selected is poor

I incurred significant expenses by hiring two cars from Mumbai and travelled with my family, including senior citizens and children. Upon reaching the property, we found it to be in a completely unacceptable and uninhabitable condition. The rooms were extremely foul-smelling, unclean, and unhygienic. The swimming pool, which was part of the booking, contained muddy and dirty water and was completely unusable. These deficiencies were immediately brought to the attention of your representative at the property, who acknowledged the poor condition. I also spoke with the owner, who apologised and expressly assured me that a full refund would be provided. As a direct consequence of your failure to provide the booked accommodation in a habitable condition, I was left with no option but to urgently arrange alternative accommodation for my family. I had to book three hotel rooms at premium last-minute pricing, resulting in substantial additional financial loss, apart from the immense inconvenience, stress, and hardship caused to senior citizens and children travelling with me. Despite repeated follow-ups with both Airbnb and the owner, only a partial refund has been processed. Retaining the remaining amount despite admitting the property's poor condition and promising a full refund amounts to deficiency in service and an unfair trade practice, causing me both financial loss and mental harassment. I hereby demand the immediate payment of my full refund. Failing this, I will initiate appropriate legal proceedings before the Consumer Commission and pursue all remedies available under applicable law, including claims for a full refund, reimbursement of the additional hotel expenses incurred, compensation for mental agony and inconvenience, travel expenses, and litigation costs