Business ProfileforWalmart Canada

Walmart is using third party companies for products that they carry in store. When ordering items, the info on shipping is not mentioned off the hop. We ordered an item that cost $17.00, but did not notice the $16.00 in delivery fees. The item was not available, but I was still charged for it. The next day, I received an email stating my item was not available, I called Walmart to cancel the item. I was informed that they could not cancel it but would reach out to the 3rd party vendor and see what they could do and call me back. After waiting for 3 days for call back, the item shipped. Since it shipped, it's been delayed three times and still hasn't arrived. It's been " escalated " twice and still no resolution. Now, I'm told, since it's been shipped, they can't cancel it, however, I can refuse the delivery so they get the item back, but I'm out the shipping cost which is half the cost. How does a company the size of Walmart not take responsibility for the items they sell through their app when a customer is not receiving the service or products they paid for??? It's not a lot of money in the grand scheme of things *** **** ***** **** ***** *** ***** ** ***