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Promo
5GB Voice & Data SIM, Only £11.00 p/m

This offer is available to new customers only and applies to business tariffs on a rolling monthly contract.

Prices ex Vat.

Get Started

Switch to a SIM-only plan with O2 — no contracts, no nonsense.
Stay connected, save money, and keep your number.

Why Switch?

Why Pay More for Less?

Save up to 40% 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.
Get Started

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.

Fidelis Plus Ltd – Registered in England & Wales
Registration No: 16295218 – VAT No: GB488843427
Registered address: 71-75 Shelton Street, London, WC2H 9JQ

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