Frequently Asked Questions

Bulk SMS allows you to send a single text message to thousands or millions of mobile phone numbers simultaneously within seconds. With a 98%+ open rate within 3 minutes of delivery, it is the most direct, cost-effective, and high-converting marketing and customer communication channel available today.

No. Your messaging units have lifetime validity. Once purchased, they remain securely credited to your wallet balance until you decide to use them, whether tomorrow, next month, or next year.

Exwhyzee utilizes direct hosted corporate gateways that automatically route messages through prioritized telecommunications channels to deliver your broadcasts even to numbers with active DND (Do-Not-Disturb) restrictions at zero extra penalty.

A standard text message contains up to 160 characters (including spaces and punctuation) for the 1st page. When a message exceeds 160 characters, it concatenates into a multi-part message where each subsequent page is calculated at 153 characters according to international GSM telecommunications standards.

We offer multiple convenient payment options:

• Instant Online Card/Bank/USSD: Powered securely by Paystack for instant 24/7 wallet funding.
• Direct Bank Wire/Transfer: Transfer to our verified corporate bank accounts and submit your payment reference for fast manual crediting.
• Recharge Voucher Cards: Redeem pre-generated Exwhyzee SMS recharge pins directly on your dashboard.

Sender IDs can be up to 11 alphanumeric characters (e.g. YourBrand, GraceChurch, ApexSchool). You can specify your sender ID when composing messages. For corporate or financial institution sender IDs requiring official carrier pre-registration, contact our support team or submit your request via your client dashboard.

Yes! We provide powerful, high-throughput REST APIs with code samples in cURL, C#, Python, Node.js, and PHP. Check out our Developers & API Documentation to get started in minutes.