Instacart I ordered groceries for delivery but only got part of my order Los Angeles California

For the first time ever, I ordered groceries from Ralphs Groceries in Lakewood but when I received it, I only got some of the items I had ordered although my credit card ws charged for the entire amount  

I called Ralphs and after spending several frustrting minues, I was told that I needed to call Instacart since that's who delivers the food.

I called Instacart last night and was greeted with a message which said the wait time was 59 minutes!  I held for more than an hour and no one came on.

This morning, I called before 7 AM our time and got the same messagee which makes me think that no matter what day or time you call,  you'll get that message.

I'm trying to call the credit card company and dispute the charge although the charge went through Ralphs.  

I'm also going to call Ralphs and suggest they find another food delivery service.  One that delivers what you order and one that you can actually reach.