Contact

At CellularSims, we’re dedicated to offering top-notch service and support. Whether you have queries about our products, need help with a purchase, or want to share your feedback, we’re here to assist.

Get in Touch

Customer Service Enquiries

Phone: +44 29 2026 3355
Email: info@cellularsims.co.uk

Our customer service team is available from 9am – 5pm, Monday to Friday. We aim to respond to all email enquiries within 24 hours.

Retailer Support

Email: info@cellularsims.co.uk

If you’re a retailer seeking support or interested in offering our products, our dedicated team is ready to assist you.

Business Enquiries and Partnerships

Email: info@cellularsims.co.uk

For business-related enquiries, please contact us during standard business hours, Monday to Friday.

Visit Our Office

Head Office Address
CellularSims 110, Regus House
Cardiff Gate Business Park
Malthouse Avenue
Pontprennau
Cardiff Wales CF23 8RU

Office hours are 9am – 5pm,
Monday to Friday.
Please note that visits are by appointment only.

Your input and inquiries are important to us. Don’t hesitate to contact us for any assistance you may need. Ensuring your satisfaction is our foremost priority, and we look forward to serving you at CellularSims.

FAQ

Get Every Single Answers Here.

We specialise in pay-as-you-go (PAYG) SIM cards from the UK's leading mobile network providers.

Your choice depends on factors like network coverage, data needs, call and text requirements, and any specific features like international calling. Our team can assist you in making the best choice based on your individual needs.

Yes, you can. You'll need to request a PAC (Porting Authorisation Code) from your current provider and provide this to us. We'll handle the rest to transfer your number.

Our SIM cards are compatible with most unlocked mobile phones. If your phone is locked to a specific network, you may need to get it unlocked before using a different network's SIM.

Top-ups can be done online, via mobile apps of the respective network providers, at cash machines, or in stores where top-up vouchers are sold.

Yes, we offer SIM cards like Lyca Mobile which are specifically tailored for affordable international calling.

If you're facing any issues, please contact our customer service team. We're here to help with troubleshooting, technical support, or any other SIM-related queries.

No, our pay-as-you-go SIM cards do not involve any long-term contracts or commitments. You have the flexibility to top up as needed and change your plan at any time.

You can check network coverage on the websites of the respective network providers. If you need assistance, our team can also help determine the best network based on your location.

Yes, we offer special rates for bulk purchases. Please contact our business enquiries team for more information on pricing and deals.

Connect Now

Connect with our dedicated team for personalized assistance.

Email Us

info@cellularsims.co.uk

Phone Number

+44 29 2026 3355

Office Address

110, Regus House
Cardiff Gate Business Park
Malthouse Avenue
Pontprennau
Cardiff
Wales CF23 8RU

Contact

Get in Touch

Visit Our Office

FAQ

Get Every Single Answers Here.

What types of SIM cards do you offer?

How do I choose the right SIM card for me?

Can I keep my existing phone number when I switch to a SIM from Cellular Sims?

Are the SIM cards compatible with all mobile phones?

How do I top up my pay-as-you-go SIM card?

Do you offer SIM cards for international calling?

What should I do if I'm experiencing issues with my SIM card?

Are there any long-term contracts or commitments?

How can I find out about network coverage in my area?

Do you offer special deals or discounts for bulk purchases?

Connect Now

Connect with our dedicated team for personalized assistance.

Email Us

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Office Address

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