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Bundling mobile with the line

A £6 line discount that requires four SIMs is a household gravity well. Recalculate the SIMs. Then decide if the well is a well or a trap.

12 min read · Money

OneTouchSwitch editorialIssue 01 · Autumn 2026 · Double12 min read648 wordsReviewed 10 September 2026

Mobile operators discovered that a fibre discount is a cheap way to look like a household utility. The household discovers, 18 months later, that leaving a bad drop means the SIMs jump £8 each and the teenager’s data cap becomes a row. That can still be a good bundle. It can also be a set of weights. The only adult move is to write two columns: stay, leave — with the SIMs repriced in the leave column at the rates you would actually pay.

Two columns

Stay: current broadband + current SIM totals, including the next known rise. Leave: new broadband year + SIMs at non-bundle prices (or a different mobile deal you would actually take).

If leave still wins, leave. If stay wins, you have a bundle that is doing work. Either way you have stopped arguing with a feeling.

Do not buy SIMs for a trench

Four fake ‘family’ SIMs to unlock a gigabit you do not need is comedy. Two real SIMs you already wanted is a bundle.

The plant at the door does not care how many phones you hold. The discount table does. Side with the door.

Aligning dates is a mythic quest

People wait for all contracts to end on one Friday. They do not. Switch the expensive one when it is expensive. Reprice the others as they come.

A mobile that ends in November is not a reason to eat a bad fibre until November.

Leave-column homework
ItemStayLeave
BroadbandCurrent monthly + risesNew year-one
Each SIMDiscountedPublic SIM-only or new bundle
TotalAddAdd — then pick
A bundle discount is a column. It is not a personality. Fill the other column.

Mobile gravity is allowed to win. It is not allowed to win unread. Reprice the phones, then keep or leave the trench.

Questions searchers actually ask

Sources

  • EE / Vodafone / Three bundle terms (typical 2026)
  • Ofcom switching rules on bundled services
  • Public SIM-only prices as a comparison baseline

Figures move. Prices, coverage and eligibility must be confirmed with the provider. OneTouchSwitch is not Ofcom, TOTSCo or a broadband network. Last fact-checked 10 September 2026.