Kroger may notify winners of its sweepstakes through various methods, including by phone, email, or mail, depending on the contest rules. If you participate in Kroger's customer feedback survey (wwwkrogercom/feedback), there’s a chance to win prizes, such as gift cards. Winners of such sweepstakes might receive a phone call, but it’s important to be cautious about potential scams. Kroger advises participants to verify the legitimacy of any communication, especially when personal details or payments are requested. Always check the official rules of any Kroger contest for specific notification methods and guidelines.