READ THIS NEXT: Walmart Is Under Fire for Doing This to Shoppers—Look for These 3 Words. Online grocery shopping has been big business for years, but it truly exploded after the pandemic hit.ae0fcc31ae342fd3a1346ebb1f342fcb In 2021, more than 70 percent of U.S. households reported ordering their groceries online at least once, according to a survey from grocery analyst firms Brick Meets Click and Mercatus. And in 2022, another survey from PowerReviews revealed that 72 percent of people shop online for groceries more often now than they did prior to the pandemic. “In the post-COVID era, grocery shoppers continue to buy online at high levels,” Andrew Smith, the vice president of marketing at PowerReviews, said in a statement, per Grocery Dive. The convenience of grocery delivery is turning out not-so-convenient for some Walmart customers. On Dec. 1, shopper Kayla Hicks-Frangos told ABC-affiliate WCIV in Lowcountry, South Carolina, that her delivery orders from the big-box retailer have been missing recently. “I was doing small orders here and there, and it kept repeatedly happening to me,” Hicks-Frangos told the news outlet. “I would order one or two small items, and it would say that it was delivered, but it wouldn’t show up.” According to Hicks-Frangos, her issues have been tied to Walmart’s Uber delivery option. “I brought up those concerns to customer service when I spoke to them, and they told me, ‘Oh, I’ll tell the higher-ups,’ but as far as I know, they didn’t take that into consideration because it’s still happening to people,” she said. On social media, other shoppers have noted problems with missing delivery orders from Walmart—and not just groceries. “Walmart get it together. Y’all’s delivery service is slacking,” one person tweeted on Nov. 13. “Love waiting on an order all day that’s never showed up!” Another Twitter user tagged Walmart in a post on Nov. 27 saying, “Made a delivery order on Wednesday. Never showed up. Tried again today, never showed up.” RELATED: For more up-to-date information, sign up for our daily newsletter. Some shoppers are so frustrated with continued problems over missing Walmart orders that they’re considering giving up on the retailer altogether for delivery services. Many shoppers have also detailed experiences where their Walmart order was marked as delivered on tracking services despite being MIA. For an order that was not received, the retailer recommends customers take a number of steps. If your scheduled delivery order is missing despite tracking information showing your package was delivered, Walmart says you should select the Customer Service button on your order. “Request a refund by starting a return,” the retailer advises. But if you have a shipping order that says it has arrived but you can’t find it, Walmart suggests you hold off before contacting its customer service. “Wait two business days to see if it arrives. It’s rare, but sometimes carriers may mark packages as delivered before they arrive,” the retailer explains on its website. In the meantime, Walmart recommends that you look around the delivery location for you order, and ask your household or neighbors if they’ve seen it. If you order has still not shown up after two days, you can contact customer service. Best Life has reached out to Walmart about customer complaints over missing delivery orders, but has not yet heard back.