If I buy a Google Home from JB Hifi I am not Google's customer, I am JB Hifi's customer. If they don't want to deal with a huge load of refund claims for Google

If I buy a Google Home from JB Hifi I am not Google's customer, I am JB Hifi's customer. If they don't want to deal with a huge load of refund claims for Google products they are free not to sell them.