No Lock-In — Cancel Anytime
No Contract SIM Cards UK
All Silux Mobile SIM plans are from Pay&Go rolling 30-day SIMs, and contracts with no price increases. Switch or cancel anytime with a SIM only provider and mobile network provider you can trust. Powered by Three's 5G network.
The Silux Mobile Promise
No price increases
Your price is locked — no price rises during your contract, ever
Free upgrades
Upgrade your plan or SIM for free, any time
No credit checks
No credit checks on our SIM contracts
No hidden fees
No hidden fees, no price increases
Why Choose No-Contract?
30-Day Rolling
Pay month-to-month. No 12 or 24-month tie-in.
Switch Anytime
Upgrade, downgrade or switch plan at any time.
No Price Increases
Your price is locked — no price rises.
5G Included
Full 5G access on Three's network, no extra cost.
No-Contract SIM FAQs
What is a no-contract SIM card?
A no-contract SIM card (also called a rolling or 30-day SIM) runs on a monthly rolling plan. You pay month-to-month with no minimum term, and you can cancel, switch or upgrade at any time.
Can I keep my number with a no-contract SIM?
Yes — you can transfer your existing UK number to your Silux Mobile SIM for free using a PAC code from your current provider. The switch takes just one working day.
Are no-contract SIMs more expensive?
No — our no-contract SIM plans are priced from just £5/month. Rolling plans don't cost more; you just have the freedom to leave at any time without penalty.
How do I cancel my no-contract SIM?
Simply give 30 days' notice. To cancel, use the online Cancel Contract page in your Silux Mobile account (log in, then go to Cancel Contract) or email info@siluxmobile.co.uk.
Will my price increase during my contract?
No. Silux Mobile never raises your price mid-contract — there are no price increases during your contract and no annual or inflation-linked price rises. The price you sign up at is the price you pay.
Are plan and SIM upgrades free?
Yes. Upgrades are free — move to a bigger data plan or a better SIM whenever you like at no extra cost, with no upgrade or admin fees.
Do you run a credit check?
No. There are no credit checks on our SIM contracts, so you can join Silux Mobile regardless of your credit history. No credit check is required to order or activate your SIM.
Is Silux Mobile a good mobile provider?
Yes. Silux Mobile is a UK SIM-only and mobile network provider on Three's 5G network, with cheap SIM deals, no price rises, free upgrades and no credit checks on SIM contracts.