I ordered a freezer last week for next day pick-up...

I ordered a freezer last week for next day pick-up as it was in stock so they took the full payment however the next day we received a call that they don't have it in stock and will deliver it on Monday. They never called, I left a message and no one called back. I later tried again on Monday late afternoon and they told us it will come on 17th April. I'm extremely frustrated by this as the customer service was very poor and they never told me about this delay as I had to find out myself and I am still waiting on a refund.