Hi there, @Moeezahmad9 . Thanks for taking the time to reach out to the Shopify Community with your mega menu situation! My name is Imogen. It’s good to meet you!
Are you able to provide us with a URL for your online store so we can see how these promotions are appearing on desktop, and compare it to what we view on mobile? Additionally, can you provide us with some information around how you’ve added these promotions to your megamenu? This contact will be helpful for anyone that happens by this thread to determine the best way to assist you!