How do I apply for the Warm Home Discount.

I can’t seem to find out how to apply for the Warm Home Discount with Bulb. This will be my first year with them. I have been getting it for the last 3/4 years with my last supplier?
Thanks

I just rang them and they registered my intrest and said they would e-mail me

Help article: https://help.bulb.co.uk/hc/en-us/articles/115001245512-Can-I-get-the-Warm-Home-Discount-

Link to register: https://bulb.co.uk/warm-home-discount/