Monday Swimwear Case Study
Increasing Revenue by 3.6% and Cutting Chargebacks by 92%
The Company
Luxury swim and lifestyle brand
Monday Swimwear is a luxury swim and lifestyle brand founded by entrepreneurs and influencers Natasha Oakley and Devin Brugman. Known for timeless silhouettes, inclusive fits, and premium craftsmanship, the brand has built a global following with a commitment to quality, confidence, and authenticity.
With a lean internal team and a growing customer base across international markets, Monday Swimwear’s operations needed to maintain a seamless customer experience while scaling responsibly and safeguarding the brand from ecommerce risk.
As order volumes scaled, so did the complexity of fraud and chargeback disputes — posing a major challenge for a small team dedicated to keeping customers happy while protecting revenue.
See Our Accurate Real-Time Fraud Screening for ecommerce in Action
See Our Accurate Real-Time Fraud Screening for ecommerce in Action
Challenges
Operational Challenges Before Wyllo
Before partnering with Wyllo, Monday Swimwear faced a growing list of operational inefficiencies that drained time and resources from its operations and customer support team.
1. Manual Chargeback Management
As Ahna recalls: “It was just me and one customer service representative trying to figure everything out. When a chargeback came in, we had to research what it even meant, how the process worked, and how to respond. There was so much Googling and guesswork.”
Without a dedicated fraud solution, the team manually gathered evidence, contacted banks, and tracked cases individually — often without understanding the nuances of each issuer’s process. This reactive approach left them exposed to financial losses and consumed valuable hours each week that they couldn’t afford to lose.
2. Returns Abuse, Unauthorized Resellers, and More: Evolving Threats and Limited Visibility
Fraudulent orders and returns abuse quickly became a recurring issue. The team found themselves investigating suspicious claims, manually reviewing transactions, and even chasing down fraudulent customers on social media. “We’d see customers wearing the swimsuits they claimed they never received,” Ahna shared. “But how do you even approach that conversation? It was frustrating and time-consuming.”
As Monday Swimwear expanded, the lack of an automated fraud prevention system became an operational bottleneck, slowing fulfillment and adding unnecessary friction to the customer experience.
The rise of gift card fraud, returns abuse, and other sophisticated schemes introduced new challenges that were nearly impossible for a small team to keep up with. Without centralized reporting or analytics, Ahna’s team lacked visibility into fraud trends and couldn’t easily identify repeat offenders. “Every new fraud trend felt like a new fire drill. We were constantly reacting instead of preventing.”
Why Wyllo?
Why Monday Swimwear Chose Wyllo
Ahna and her team sought a solution that would eliminate the manual burden of reviewing fraud cases and reduce the influx of support tickets tied to disputed or delayed orders. Wyllo stood out for its combination of automation, accuracy, and expertise.
Specialized Fraud Expertise and Seamless Integration
“We chose Wyllo because it was one less thing to think about. The expertise was clear from the start, and it made no sense for us to chase something we didn’t fully understand when Wyllo specialized in it.” Wyllo integrated directly into Monday Swimwear’s checkout process, instantly screening transactions in real time while maintaining a frictionless experience for legitimate customers.
A Better Customer Experience
For Monday Swimwear, better fraud prevention wasn’t just about stopping losses . It was about protecting great customers. Before Wyllo, legitimate buyers were sometimes inconvenienced by manual reviews, delays, or verification emails driven by rigid fraud filters.
By shifting to intent-based screening and human-backed decisioning, Monday Swimwear was able to approve more good orders instantly, reduce confusion around delayed shipments, and remove unnecessary friction from the buying process.
Automation That Adapts to New Threats
As the fraud landscape evolved, Wyllo’s systems adapted in real time to detect and prevent new types of abuse — from returns abuse to gift card exploitation. “It’s been amazing to see how Wyllo has evolved alongside us,” Ahna noted. “The dashboard, the automation, the ability to catch things we’d never even think to look for. It’s made everything so much easier.”
End-to-End Chargeback Protection
By offloading chargeback management to Wyllo, the team no longer needed to collect documentation or respond to disputes manually. Wyllo’s dedicated chargeback specialists handled the entire process — from detection to representation — ensuring every case was addressed efficiently and consistently.
Commitment
A Multi-Year Commitment Driven by Measurable Results
Since partnering with Wyllo, Monday Swimwear has achieved measurable gains in efficiency and revenue protection. The impact was so significant that Monday Swimwear’s success with Wyllo led them to sign a multi-year renewal, solidifying Wyllo as a long-term operational partner.
This commitment underscores the brand’s trust in Wyllo’s ability to adapt in real time to new fraud tactics, keeping their business protected as threats evolve.
3.6% Revenue Lift Through Smarter Approvals
By confidently approving more legitimate transactions that might have previously been flagged or declined, Monday Swimwear unlocked new revenue opportunities without adding risk. Wyllo’s precise decisioning ensured that real customers experienced smooth, uninterrupted checkouts, even during peak sales seasons.
92% Reduction in Chargebacks
With Wyllo proactively detecting and blocking fraudulent transactions, chargebacks have dropped by 92%, creating immediate savings and long-term operational relief. The chargeback management service has not only reduced losses but also provided actionable insights to strengthen internal policies and improve prevention strategies.
224+ Hours Saved per Year
With Wyllo handling reviews and chargebacks, Ahna and her small team have reclaimed significant time each year that was previously spent chasing fraud evidence or responding to disputes. “It’s completely revolutionized how we spend our time,” Ahna said. “We’re no longer hunting down fake claims or trying to understand every bank’s system. We can finally focus on creating great products and serving our customers.”
