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Technical Notifications

To be notified of technical changes and outages, please join our Technical Notifications List (recommended for all developers, integrators and high volume users).

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BulkSMS Contact details

Office Hours Support

Monday to Friday, 5.30am to 3.30pm GMT & Saturday from 8am to 2pm GMT

Phone Numbers:

  • South Africa: +27 21 528 3420
  • United Kingdom: +44 845 301 6857
  • USA: +1 347 417 5903
  • Germany: +49 (0) 180 300 221 04096
  • Spain: +34 (0) 933 967 998

Fax Numbers:

  • South Africa: +27 21 552 2848
  • USA: +1 512 716 8006
  • Germany: +49 (0) 180 300 333 14096

After Hours Support

Monday to Friday, 3.30pm to 10pm GMT

After Hours Numbers:

  • South Africa: +27 21 528 3420
  • USA: +1 512 716 8006
  • Germany: +49 7071 8604 29
  • Hong Kong: +85 281 930 767

SMS Fault Report (After hours only!):

  • SMS: +27 82 887 2376

General Enquires

For general enquires about BulkSMS services please e-mail support@bulksms.com.
* Registered users please note: Include your Username in the e-mail.

Pricing and Sales Queries

Should you like to discuss pricing or have any other sales related query, please contact our sales desk at sales@bulksms.com.

Company Details

Celerity Europe AG, Switzerland
Company Registration Number: CH-170.3.028.311-6

Celerity Messaging UK LTD, United Kingdom
Company Registration Number: 6356781
VAT number: 930182548

Celerity Systems (Pty) LTD, South Africa
Company Registration Number: 2000/005883/07
VAT number 4750188551

Technical Notifications

To be notified of technical changes and outages, please join our Technical Notifications List (recommended for all developers, integrators and high volume users).

Network Coverage Updates

At BulkSMS we are constantly striving to ensure that we use the best possible delivery routes for the SMS messages that you send out. This may affect the delivery cost, especially when sending to international numbers. To be updated of any changes in our delivery costs, please sign up for our Coverage Change Notification email.

Unwanted Messages - StopSpam

If you have received an unwanted SMS message from BulkSMS.com click here.