Terrible service, machine not "clean enough" to look at for inspection

MRRN-75wgb-8kk5 I bought a 360 - C50 Robot Vacuum Cleaner, Suction, Sweep and Mop. Absolutely terrible service. No Communication to the customer. My machine is under warranty and has to be refunded or fixed. This pathetic service provider now tells my after the 3rd time that I try and book this machine in, that their supplier says the machine is not clean enough so they can not look at it. They are playing games so that the warranty expires.