No, you're not officially an SSE Airtricity customer until you receive a Welcome Letter. You should receive this within 3 weeks of signing up and it will contain:

1. Confirmation your switch to SSE Airtricity, and
2. Your SSE Airtricity account number.

If you haven’t received a letter within 3 weeks, please contact our Customer Service team.

If your name, email, address or phone number weren’t entered correctly during sign-up, we may be unable to contact you if there’s a problem, so please get in touch.