No delivery - no communication

I placed an order for next day delivery and I'm yet to receive the order. I have reached out on email twice with no response and their customer service number is also not being answered. This is the second consecutive time that I have paid an early delivery fee without receiving the order on time. Their page does not have any new tracking information so I can't track and I can't reach them.

If they have changed management or their processes then I'd rather not do business with them anymore because they have become unreliable and they are disregarding their customers. I've been a customer since it's launch but I'm happy to walk away if I have to deal with poor service.