The best restaurants serving American food in Larkhall Lambeth London

Online says they close at 2AM but they never let anyone in past 12PM - I live next door so its a regular occurence. They have no customer service what so ever. Always advised to order via the app or we cannot order at all. Even though I explain I don't have a phone and need to order physically. They do not care, zero customer service whatsoever and do not care about their customers. Just want to finish and close out early. So obvious. Worse service I've ever experienced