Parrot Product, poor service

Paid deposit for a kitchen backsplash on the 27th February. The installer measured the area with special devices. The message from the service provider was installation would take 15 days. A request was made for balance of payment prior to installation which was done. The installer was onsite on the April 8th, and the measurements were incorrect. I requested that the salesman arranges for his manager to contact me. This was not done. On their Facebook site a further request was made for a manager to contact me, not done. To date we have not received our splashback after payment was made. Terrible service and no product.