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Independent United Kingdom network guidance
Guidance line020 3896 5248 This number is for guidance and information only. We sell nothing, arrange nothing and act for no network. Ring it if anything on these pages is unclear.
Guide

Phone plans

Three ways to get a handset, the single calculation that settles any offer, and the month in which most households quietly begin overpaying.

Written July 2026 · no prices published · nothing for sale

Jump to
The three ways to get a phoneThe calculation that settles everythingThe month people begin overpayingTrade-in, delivery and returns
Phone plans — at a glanceOur summary. Confirm current terms with the provider.
Routes to a handset
Combined bundle, split contract, or outright plus a SIM
Combined bundle used by
Most networks
Split contract used by
O2 and Sky Mobile
The calculation
Upfront plus monthly times months
The benchmark
Same handset outright plus the cheapest suitable SIM
Credit check
Applies to any monthly device agreement
Trade-in quotes
Two, minimum — the maker's and one independent
Cooling-off
Commonly fourteen days on online orders
Our position. teesrition is an independent information service for mobile customers in the United Kingdom. We are not a mobile network. We have no affiliation with, endorsement from, appointment by or connection to Three, EE, O2, Vodafone, Sky Mobile, Tesco Mobile or any other provider, and no commercial arrangement with any of them. We do not sell, supply, arrange or broker SIM cards, contracts, handsets or services of any kind, and we take no commission from anybody. Everything here is general information; a provider's own current terms always take precedence.
01

The three ways to get a phone

Routes
RouteWhat it meansWho uses it
Combined bundleHandset and airtime as one monthly figure; does not fall at term endMost networks
Split contractDevice credit ends at repayment; airtime billed separatelyO2, Sky Mobile
Outright plus a SIMNo credit agreement at all; money needed upfrontAnyone
Do this
  • Establish which route you are being offered before comparing prices.
  • Use the outright route as your benchmark even if you do not take it.
02

The calculation that settles everything

Maths

Cost slides between the upfront payment and the monthly figure like a see-saw. That is exactly why two shops can show completely different structures for the same handset and both call theirs the cheapest.

  1. Add the upfront payment to the monthly charge multiplied by the number of months.
  2. Work out the same phone bought outright plus the cheapest suitable SIM, over the same period.
  3. Take whichever total is smaller.
  4. Value any bundled earbuds or watch at what you could genuinely resell them for.
Do this
  • Write both totals down before discussing anything else.
  • Ignore accessories you would never have bought.
03

The month people begin overpaying

The trap

Nothing happens automatically when a minimum term ends. On a combined bundle you carry on paying for a handset you already own, indefinitely. On a split contract the device payment does stop — but the airtime continues at full price until you reduce it.

WarningDiary the end date on the day you sign, with a reminder a month before. That single calendar entry is worth more than any comparison website.
Do this
  • Within days of the end date: move to SIM-only, upgrade deliberately, or leave.
  • Treat any upgrade offer as a brand-new contract restarting the clock.
04

Trade-in, delivery and returns

Admin
MatterWhat to know
Trade-in valueSwings with condition, storage size and season
Before despatchErase the handset, unlink every account, photograph it
Delivery promisesBelieve the stock line on the product page rather than the banner
Cooling-offA free trial of the network as well as the phone
Do this
  • Take two trade-in quotes.
  • Test signal at home and at work room by room inside the returns window.
  • Test the battery across several ordinary days, not one charge.
  • Keep packaging complete until you have decided.

Still unsure after reading this?

Ring us and we will go through it with you. Nothing is offered for sale at any point.

020 3896 5248This number is for guidance and information only. We sell nothing, arrange nothing and act for no network. Ring it if anything on these pages is unclear.
Our position. teesrition is an independent information service for mobile customers in the United Kingdom. We are not a mobile network. We have no affiliation with, endorsement from, appointment by or connection to Three, EE, O2, Vodafone, Sky Mobile, Tesco Mobile or any other provider, and no commercial arrangement with any of them. We do not sell, supply, arrange or broker SIM cards, contracts, handsets or services of any kind, and we take no commission from anybody. Everything here is general information; a provider's own current terms always take precedence.

Ring us if these pages do not cover it

We hold no arrangement with any network, take no commission and sell nothing at all. If your question is not answered here, telephone and ask.

020 3896 5248 Guidance and information only. We sell nothing, arrange nothing and act for no network.
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Our position. teesrition is an independent information service for mobile customers in the United Kingdom. We are not a mobile network. We have no affiliation with, endorsement from, appointment by or connection to Three, EE, O2, Vodafone, Sky Mobile, Tesco Mobile or any other provider, and no commercial arrangement with any of them. We do not sell, supply, arrange or broker SIM cards, contracts, handsets or services of any kind, and we take no commission from anybody. Everything here is general information; a provider's own current terms always take precedence.

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