BIGSO USA — SMS AND RCS MESSAGING TERMS OF SERVICE

Effective Date: October 15, 2026

The following SMS and RCS Messaging Terms supplement the Terms of Service of Bigso USA ("Bigso," "we," "us," or "our"), available at https://bigsostore.com/policies/terms-of-service.

These terms apply to customers who subscribe to or otherwise participate in Bigso's mobile messaging program.

1. Mobile Messaging Program

Bigso operates a mobile messaging program through Short Message Service (SMS) and Rich Communication Services (RCS), where supported.

By opting in, you agree to receive recurring automated promotional and personalized marketing text messages from Bigso at the mobile phone number you provide.

Messages may include:

• Product launches and announcements
• Exclusive discounts and promotional offers
• Seasonal sales and special campaigns
• Shopping cart reminders
• Personalized product recommendations
• Other marketing communications relating to Bigso products and services

Messages may be delivered using automated messaging technology.

2. Consent to Receive Messages

By voluntarily opting in to Bigso's mobile messaging program, you expressly consent to receive recurring automated promotional and personalized marketing text messages from Bigso at the phone number provided.

Consent is not a condition of purchase.

You may subscribe through designated website forms, checkout opt-in options, or other authorized subscription methods.

Providing a phone number for order fulfillment or customer service does not automatically enroll you in promotional messaging.

3. Message Frequency

Message frequency varies.

The number of messages you receive may depend on promotional campaigns, product launches, seasonal offers, and your interactions with Bigso.

You may receive recurring messages while subscribed to the program.

4. Message and Data Rates

Message and data rates may apply.

Your mobile carrier may charge fees for sending or receiving SMS or RCS messages according to your mobile service plan.

Bigso is not responsible for charges imposed by your mobile carrier.

5. How to Unsubscribe — STOP

You may opt out of Bigso's mobile messaging program at any time by replying STOP to any promotional message you receive from Bigso.

After submitting your opt-out request, you may receive a final confirmation message.

Once unsubscribed, you will no longer receive promotional messages through the program unless you provide new consent.

Where available, you may also use the unsubscribe or block-sender features provided by your messaging application.

Opt-out requests are honored across Bigso's SMS and RCS marketing communications.

6. Customer Support — HELP

For assistance with Bigso's mobile messaging program, reply HELP to a message where supported.

You may also contact Bigso through the customer support information provided on our website:

https://bigsostore.com

7. RCS Messaging Features

Where supported, Bigso may deliver Rich Communication Services (RCS) messages using a verified branded sender identity.

RCS messages may include:

• Bigso's verified business name and logo
• Product images and rich media
• Interactive buttons and links
• Promotional content and personalized offers
• Product recommendations and shopping experiences

RCS availability depends on your device, mobile carrier, messaging application, and network capabilities.

If RCS is unavailable, messages may be delivered through standard SMS where supported.

8. Shopping Cart Reminders

If you have provided the required consent to receive promotional mobile messages, Bigso may send shopping cart reminders when you add products to your cart but do not complete your purchase.

Our website may use cookies and similar technologies to recognize shopping cart activity and support these reminders.

You may opt out of shopping cart reminders and other promotional mobile messages at any time by replying STOP.

9. Privacy and Data Protection

Your participation in Bigso's mobile messaging program is subject to our Privacy Policy.

We may collect and process mobile phone numbers, subscription preferences, consent records, and messaging interactions to operate and support our mobile messaging services.

Text messaging originator opt-in data and consent will not be sold, rented, or shared with any third parties for marketing or promotional purposes.

Bigso may share information with authorized messaging service providers, including Klaviyo, telecommunications carriers, and messaging delivery partners, solely as necessary to operate and support our messaging program.

Such information will not be shared with third parties for their independent marketing or promotional purposes.

For additional information about our privacy practices, please review Bigso's Privacy Policy:

https://bigsostore.com/policies/privacy-policy

10. Message Delivery and Availability

Bigso and participating mobile carriers are not responsible for delayed or undelivered messages.

Message delivery may be affected by carrier restrictions, network availability, device compatibility, or technical limitations.

The availability of SMS and RCS features may vary by location, carrier, and device.

11. Changes to the Messaging Program

Bigso reserves the right to modify, suspend, or discontinue its mobile messaging program at any time, subject to applicable law.

We may update these Messaging Terms periodically to reflect changes in technology, business practices, legal requirements, or messaging services.

Updates will be published on our website.

12. Contact Information

For questions about these Messaging Terms or Bigso's mobile messaging program, please contact:

13. Relationship to General Terms of Service

These SMS and RCS Messaging Terms form part of Bigso's general Terms of Service.

All other provisions of Bigso's Terms of Service, including those governing online purchases, products, payments, limitations of liability, and dispute resolution, remain in effect.

In the event of a conflict between these Messaging Terms and the general Terms of Service concerning the mobile messaging program, these Messaging Terms will govern to the extent permitted by applicable law.