Costext anonymous SMS failed to send, how can I fix this issue?

If Costext anonymous SMS failed to send,

Check basic issues first;

• Verify:
– Phone number is correct (with country code)
– No extra spaces or missing digits
– Recipient number can receive international SMS

• Why:
– Most failures are due to formatting errors

Check your balance or credits;

• Make sure:
– Payment was successful
– You still have active credits/subscription

• Important:
– Some messages fail if credits are insufficient

Try resending;

• Do:
– Refresh the page or app
– Send again after a few minutes

• Tip:
– Temporary system issues can cause delays

Check service limitations;

• Note:
– Some countries/operators block anonymous SMS
– Certain numbers (banks, services) may reject messages

Contact Costext support;

• Email:
– [email protected]

• Write:
– “My SMS failed to send despite payment. Please fix the issue or refund my credits.”

• Attach:
– Screenshot of error / failed message

If not resolved;

Share your case on Xolvie so others are aware and the company is prompted to act.