If the uinfootwear.sg coupon code isn't working, consider the following steps:
- Check the expiration date of the coupon code.
- Ensure the code is valid for the items in the cart.
- Verify the minimum purchase requirement is met.
- Confirm the code is entered correctly, without any typos.
- Clear the browser cache and try again.
- Use a different browser or device.
- Contact customer support for assistance.
If these steps don't resolve the issue, the code may no longer be valid.