Independent fraud & payment support

More refund requests.
More payment disputes.
Less time to deal with them.

I help online retailers investigate suspicious orders, tackle refund and promotion abuse, and sort out payment problems. Book a review or bring me in to handle the cases.

Talk to Aaron

A 20-minute introduction to understand
what’s happening in your business.

Card fraudRefund abusePromo abuseChargebacksPayment issues

01 / How I can help

Find out what’s going wrong.
Get help putting it right.

Get a clear view of the problem, or bring me in to help handle it.

Explore the review Explore hands-on support

Fraud & Payments Review

A closer look at where you’re losing money.

From £750 / one-off review

Discuss a review

Understand where losses happen, why they keep happening and what you can do about them.

I look at a defined sample of your activity alongside the processes and decisions behind it. That includes what data you hold, which useful details are missing and how your team could make better use of it.

  • Review fraud, refund, promotion or payment concerns
  • Identify repeat patterns, linked activity and gaps in controls
  • Assess data quality, reporting and decision-making
  • Receive written findings and a prioritised 30-day action plan
  • Work through the findings in a 60-minute discussion

The starting price covers one agreed business area and a defined data sample. Discovery is included. Broader reviews are quoted separately, with scope and price agreed before work begins.

Fraud & Payments Support

Someone to handle the difficult cases.

From £600 / month · 10 hours

Discuss support

An experienced person to investigate cases, make agreed decisions and follow payment problems through.

I can work from securely supplied files or within your own systems using a named, restricted contractor account. We agree decision authority, priorities and response times at the outset.

  • Card fraud, refund abuse and promotion abuse
  • First-party fraud and abusive chargeback claims
  • Suspected internal fraud and linked individual or group activity
  • Missing payments, reconciliation queries and payment issues
  • Evidence preparation, case decisions and clear investigation notes
Flexible support and pricing

Ad hoc support£65/hour · 2-hour minimum

Monthly support£600 · 10 hours

Larger allocation£1,100 · 20 hours

Complex investigationsIndividually scoped and quoted

Investigation, meetings, case notes and reporting count towards the agreed hours. Additional time is agreed before it is used. Scheduled support does not include continuous monitoring.

02 / Getting started

Start with the problem
you’re dealing with.

01

Tell me what’s happening.

Rising refunds, repeated disputes or a payment that doesn’t add up. We start with your concern and what you already know.

02

Agree the work.

We define the scope, access, price and timescales. Data is shared securely, with only the information needed for the task.

03

Follow the evidence.

You receive clear findings or documented case decisions, with practical actions and any remaining uncertainty explained.

03 / The person behind SIGNAL

I’m Aaron.
You’ll work directly with me.

Aaron McGrawFounder · SIGNAL

My background is hands-on: reviewing transactions, investigating fraud, resolving payment problems and leading the teams doing that work.

I’ve worked across customer service, fraud and payment operations, through to senior revenue-protection leadership. That experience shapes how I approach a problem: understand the detail, ask questions and follow the evidence.

A suspicious transaction is a starting point. I look at the wider activity, how accounts connect and what the available data can actually tell us. Genuine customers and the people making difficult decisions matter too.

Automation isn’t always AI. Rules, filters and systems passing information between them can be just as useful for the right task. I look at whether they work for your business: reducing losses, saving time and treating genuine customers fairly—and where a person needs to take a closer look.

When you work with SIGNAL, you work directly with me—from the first conversation to the findings and follow-up.

Let’s start with a conversation

Got an order, refund or payment you’re unsure about?

Tell me what you’re seeing. I’ll give you an honest view of whether I can help.

Arrange a 20-minute introduction

A brief outline is enough for the first email. We’ll agree a secure way to share any case or customer data afterwards.