How many returns until Costco bans you?

I'm curious to understand, just how many returns does one need to make at Costco before they risk being banned from the store? Is there a specific threshold or policy in place that outlines the limits on returns? It seems like a reasonable question to ask, especially for those who frequent the store and may occasionally need to return an item. So, let's delve into this topic and find out more about Costco's return policy and what it takes to potentially face a ban.