O2 network · Business Telco service

O2 unlimited SIM with monthly card payments

Keep a compatible handset. Choose a flexible monthly SIM with no long-term contract and no Direct Debit mandate. Supplied by Business Telco through Giacom.

Check signal where you work if you wish: optional O2 coverage check.

Your monthly rental

£34.99 /month

Including VAT · applicable chargeable usage extra

  • Unlimited UK data — 650GB fair-use allowance
  • Unlimited standard UK calls and texts
  • 25GB EU roaming data, subject to destinations and terms
  • 30 days’ notice · 31-day minimum
Enquire about this plan

Online ordering is not currently available. You can enquire about this offer without placing an order.

More flexibility for your working day

Keep the handset you know

Use an existing compatible handset and choose airtime separately. Check the exact device and SIM requirements with us before ordering.

Pay your bills by card

No Direct Debit mandate. Authorise a saved card for later monthly bills, including applicable chargeable usage; the initial amount is reviewed before payment.

No long-term commitment

A flexible monthly arrangement with a 31-day minimum. Give 30 days’ notice after day one, subject to the applicable final terms and switching rights.

A clear route to getting connected

How it works

When ordering opens, you will review the offer and initial amount before authorising card payment. Paying does not itself confirm activation.

  1. 1

    Choose this plan

    Check the allowances, coverage if useful, and the terms for your business.

  2. 2

    Enter your details and pay

    Review the activation expectation, itemised initial rental, terms and saved-card authorisation before confirming.

  3. 3

    Receive confirmation

    Business Telco confirms the provisioning and activation arrangements. Your billing starts on activation.

Understand your first payment and monthly bills

Initial payment

The remaining calendar month is charged pro rata from activation, plus the following calendar month in advance. The amount depends on the activation date, so it will usually differ from one month’s rental.

You review the itemised rental and VAT before paying. If the expected activation date changes, the periods and any payment already received must be reconciled.

After that

Your ongoing rental is £34.99 per calendar month including VAT, plus applicable chargeable usage. You authorise subsequent bills to be collected from your saved card.

This is an ongoing service, not a one-off purchase. Final chargeable usage can be billed after the service ends.

Your allowances and key terms

Flexible O2 SIM allowances and commercial terms
Monthly rental£34.99 including VAT; chargeable usage extra
Network and supplyO2 network, supplied by Business Telco through Giacom
UK dataUnlimited UK data, subject to a 650GB fair-use allowance
UK calls and textsUnlimited standard UK calls and texts. Exclusions and applicable charges apply; check special numbers, international and other non-standard usage before ordering.
EU roaming25GB data allowance, subject to the applicable destination list and roaming terms
PaymentCard initially, with authorisation for saved-card collection of subsequent monthly bills. No Direct Debit mandate.
Rental periodsBilling starts on activation; initial pro rata calendar month plus the following month in advance
CancellationNotice after day one; 30 days’ notice and a 31-day minimum. Applicable switching/cancellation rights are separate.

Our general usage charges information and standard terms provide background information, not a confirmed rate list for this offer. We will supply the applicable offer terms, exclusions and charges for you to review before ordering.

Questions before you choose

Can I keep my existing number?

Tell Business Telco you want to keep your number when enquiring. We will confirm the transfer requirements and timing before arrangements are agreed. Do not cancel your existing service before checking the transfer process.

When does billing start?

Rental starts on activation. The date used for an initial quote is an expectation, not an activation guarantee. A change to that date requires the rental periods and any payment already received to be reconciled.

Why is my initial payment different from £34.99?

The initial payment covers the remaining days of the activation calendar month pro rata, plus the following calendar month in advance. You review the itemised amount before authorising payment. It is not a one-off SIM purchase.

How do monthly card payments work?

You authorise Business Telco to store a payment method securely through its payment provider and collect subsequent monthly bills from that saved card, including applicable chargeable usage. This is a continuing payment authorisation, not a Direct Debit mandate.

What roaming is included?

The offer includes EU roaming with a 25GB data allowance, subject to the applicable destination list and roaming terms. Ask us to confirm your destinations before relying on roaming. Do not assume every European country or every type of usage is included.

Can my bill exceed the monthly rental?

Yes. £34.99 is the monthly rental including VAT. Calls, texts, roaming or other usage outside the included allowances may be chargeable under the applicable tariff. Standard UK calls and texts do not mean every number, service or international destination is included. Confirm the exclusions and charges before ordering.

How do I cancel?

You can give 30 days’ notice after day one, with a 31-day minimum. Cancellation is not immediate. Any applicable switching and cancellation rights are separate from these notice arrangements. We will supply the offer terms for review before you order. Final chargeable usage may be billed after service ends.

Interested in the flexible O2 SIM?

Online ordering is not currently available. Contact Business Telco about the £34.99 flexible O2 offer and we can discuss your requirements, confirm the applicable terms and explain the next steps. An enquiry does not place an order or authorise a payment.

Prefer to compare alternatives? See all business SIM plans or read our O2 business guide.