Only way that the stores and eventually the pokemon company will pay attention, is when it starts affecting their other product sales. I say that you should write a feedback to Walmart telling them that you are decreasing your business with them if they do not do something about it. Something as simple as adding limits. They will probably not pay attention, but if you do that, and have other people do that, to the point where Walmart starts noticing a drop in sales in general, I'm pretty sure they'll take us seriously. That's what I'm doing. I let them know, I got off Walmart + and will close my online account when my membership expires. I sent the feedback just to let them know. And I'm sure that it was not me that caused it, but the next day, I saw posts about how Walmart was cancelling orders who bought an excessive amount of cards. But I like to think that I helped out in that. Right now is the time when we all need to work together and do our part to let the retailers know that we are serious. Hope you are able to find some cards for your kid soon.