Walmart customer service escalation
Looking for any advice on how to escalate a Wal mart issue. I bought a plastic Wal mart gift card in store as a Christmas present for my parents. They tried to use it in store in Jan and were told at cash that the card says "invalid card" and they would need to call the gift card center. After calling, they were told it was store issue and need to return to the store. My parents gave me the card, i took it to the store and was told by that it say's "invalid card" and i need to call the gift card dept. I called from the store and they told me it's a store issue and there is nothing they can do. One of the store managers was able to scan the card and see the $100 balance and told me if i go to cash, it will work. I asked for a replacement card in case there are issues, and he said it will work for sure. I went to cash and sure enough "invalid card". The manager was unavailable so a clerk too my info and said someone would call within 48hrs. No one did. I contacted walmart.ca and opened a ticket via the chat. They keep telling me to call the gift card line, which i did again and now have it in an email that they can't help. I have contacted the chat service every week and they tell me a manager will call within two days. No one ever calls. I have no idea how to resolve this and this has been the worst customer service i have ever experienced!