1: Costco rival shakes up perk policy, risking customer backlash.

2: New perk changes by Costco competitor spark concern among loyal shoppers.

3: Rival retailer faces backlash over controversial perk adjustments.

4: Costco's competitor takes risky move with perk policy changes.

5: Controversy surrounds competitor's decision to alter key perk offerings.

6: Will rival retailer's perk policy changes harm customer loyalty?

7: Is Costco's rival making a costly mistake with perk adjustments?

8: Competitor's perk policy shift could backfire, experts warn.

9: Costco's rival gambles on perk policy changes, but will it pay off?