Guides
Understand your SIM deal
Practical, jargon-free guides on choosing, switching and getting the most from your SIM.
Annual price adjustments explained
Every tariff rises once a year. Here's exactly how the increase is calculated on each network and how much notice you get.
5 min read · Updated 29 October 2026
Leaving early: cease fees and early termination fees
What it costs to disconnect before your term is up, and why a 30-day plan isn't always free to walk away from.
5 min read · Updated 17 October 2026
Roaming rates and fair usage
What each network charges per day abroad, where roaming is inclusive, and the fair usage rules that apply when you travel.
6 min read · Updated 17 October 2026
What 'unlimited' actually means on a SIM plan
Unlimited plans still have rules. Here's the fair usage position and what happens if you go well beyond normal use.
5 min read · Updated 29 October 2026
How pooled and shared data works
Aggregated tariffs and sharers both pool data across an account, but they work differently. Here's which suits which team.
6 min read · Updated 17 October 2026
How to keep your number when switching networks
The PAC code process, the timings and what to check before you switch.
4 min read · Updated 17 October 2026
How our prices compare with buying direct
We show the network's own published SIM only price next to ours so you can compare starting monthly prices.
4 min read · Updated 29 October 2026
EE, Vodafone and O2: what actually differs
Cutting through the branding — the differences you can actually put a number on when choosing between the three networks.
5 min read · Updated 17 October 2026
How much data do you actually need?
A practical way to size your allowance using your own usage rather than guessing — and when unlimited is worth the premium.
5 min read · Updated 17 October 2026
Business SIM only plans explained
Ex VAT pricing, pooled allowances, account-level bundles and the contract rules that matter when you're buying for a team.
5 min read · Updated 29 October 2026
Check coverage before you buy
The one check worth doing before you choose a network — and the three places you should test, not just your home postcode.
4 min read · Updated 17 October 2026
Moving your company's mobile numbers to a new network
How to bring every business number across with PAC codes, without losing calls or overlapping contracts.
4 min read · Updated 29 October 2026
VAT invoices and billing for business mobiles
Why business mobile prices are shown ex VAT, how invoices work and who bills you.
4 min read · Updated 29 October 2026
Choosing the right mobile plan for your team
Single-user plans, pooled data or a sharer bundle — how to pick by team size and how people actually use data.
4 min read · Updated 29 October 2026