Bad service

I raised a query with Avon and was informed that I need to contact the courier company. Avon uses Skynet to deliver orders and I had indicated delivery times to Skynet but they attempt to deliver outside of the delivery times. The issue at hand is that I require my Avon order and surely Avon should escalate or make the enquiry phone call to assist yet doing so is a problem for Avon. This is quite frustrating. Avon is quick on the dial sending a day late payment reminder but they won't get involved to assist with delivery issues.