Walmart website promised when you refer a friend for online order, they will give you $10 discount on your order and $10 discount for your friend too. My friends got the discount code and were able to get discount on their orders, but disocunt codes they sent to me dont work! It says not a valid code. So I called customer service expecting they would help me with no problem... amazingly they dont... either they said it had been happening like that about a month ago and they dont know when it will start working again or their system is down which is not true since new customers’s discount codes went through fine. Writing to customer service.... no reply back..... Make sure their promise is valid before working for them. I can’t believe a big company like this handle issue like this...especially something they promised in their websites. I hope management is aware of this problem asap and solve the issue either putting down the referral ads temporarily until it is fixed or provide what they promised through different channel until it is fixed.