Promo
O2 SIM-Only Deal: Unlimited Data & Minutes for £20.00/month

This offer is available to new customers only and applies to business tariffs on a 12-month contract.

Prices ex Vat.

Switch to a SIM-Only plan with O2
Stay connected, save money, and keep your number.

Why Switch?

Why Pay More for Less?

Save up to 30% on your mobile bill

We don’t just match quotes — we beat them. Reach out and see how much you could save.

Keep your current phone — just switch the SIM

Already with O2? Good news — you can still grab this deal, no SIM swap needed. Just sit back and enjoy the savings.

Works with all unlocked phones

iPhone, Android, flip phone from 2009 — if it’s unlocked, it works.

Who We Are

Meet Fidelis Plus – Mobile Made Simple

We’re a UK-based provider helping small businesses and smart consumers get the best out of their mobile plans.

We partner with top-tier networks like O2 to offer flexible, cost-effective SIM-only deals with no fluff.

Trusted by UK Professionals
Helping businesses and individuals stay connected, the smart way.
Real Human Support
No bots. Just friendly UK-based experts ready to help.
GDPR Compliant
Your data stays safe, secure, and strictly your business.
Unlimited Mobile Plan

Why Choose an Unlimited Data SIM?

An unlimited data SIM gives you unrestricted internet access with no usage caps, making it the perfect solution for heavy data users. Whether you’re streaming HD videos, joining video calls, gaming online, transferring large files, or running data-intensive apps—this SIM keeps you connected without interruption.

For businesses, unlimited data means teams can work productively without the fear of hitting data limits or facing reduced speeds. It’s especially valuable for remote staff, mobile teams, or companies that depend on cloud platforms and real-time collaboration tools.

Simplify your data management by switching to a single, unlimited plan—no more juggling multiple capped plans or worrying about overages. With an unlimited data SIM, your team stays connected, productive, and secure—wherever they work.

Keep Your Phone. Cut Your Bill.

O2 SIM-Only Promotion For Business

How it works

Switching Is Simple

Already on O2? No problem. You keep your SIM — we lower your bill. Easy.
Step
1

Pick Your Plan

Choose a SIM that fits your usage.
Step
2

Port Your Number

We’ll help you keep your existing number.
Step
3

Insert & Go

Receive your SIM. Plug it in. You’re live.
Quote Request Form

Get a Free Quote – No Commitment

Tell us how many connections you need using the form below, and we’ll get back to you with a tailored quote just for your business.