Buy Now, Pay Later (BNPL) services have gained massive popularity. They allow shoppers to split purchases into smaller payments. While these services seem convenient, not all of them are consumer-friendly. Some companies come with hidden fees, poor customer service, and policies that can trap users in financial trouble. Before you choose a BNPL service, it’s important to know which ones have the worst reputations. Here are three Buy Now, Pay Later companies that have received the most complaints from consumers.
1. Klarna
Klarna is one of the most well-known BNPL services, but it has also drawn a significant number of customer complaints. One of the biggest issues is its inconsistent and confusing refund process. Many shoppers report difficulties getting their money back after returning an item, sometimes waiting weeks for a resolution. Klarna also has a habit of approving purchases and later canceling them without explanation. Another major concern is its impact on credit scores—while Klarna doesn’t always report to credit bureaus, missed payments on certain plans can damage your credit. With unreliable customer service and a history of payment issues, Klarna is not the best choice for those seeking a hassle-free BNPL experience.
2. Zip (Formerly Quadpay)
Zip, previously known as Quadpay, has gained a reputation for hidden fees and unclear policies. While it advertises interest-free payments, many users have complained about unexpected charges. Late fees can add up quickly, and some customers have reported being charged extra even when payments were made on time. Another issue with Zip is its aggressive use of automatic payments—some users claim that the company withdraws funds from their accounts without warning. Additionally, Zip lacks strong fraud protection, with several reports of customers being held responsible for unauthorized transactions. These problems make Zip one of the worst BNPL options available.

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3. Sezzle
Sezzle markets itself as a flexible BNPL service, but it has several drawbacks that make it less consumer-friendly. One of the biggest concerns is its high penalty fees, which can make small purchases much more expensive if you miss a payment. Unlike some BNPL providers, Sezzle charges rescheduling fees, meaning customers pay extra just to change their due date. Many users also complain about slow customer service responses, making it difficult to resolve billing disputes. Additionally, Sezzle’s approval process can be inconsistent, with some users randomly denied after previously being approved. With these issues in mind, Sezzle is a risky choice for those looking for a smooth and affordable BNPL experience.
While Buy Now, Pay Later services can be helpful when used responsibly, not all companies operate with transparency and fairness. Klarna, Zip, and Sezzle have all faced significant customer complaints regarding hidden fees, poor refund policies, and unreliable customer service. Before using any BNPL service, it’s important to read the terms carefully and understand the potential risks. Choosing a more reputable provider or sticking to traditional credit options may help you avoid unnecessary financial headaches.
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