Initially the service responded to my blog and asked me to contact them. I did this and they said that they could replace the light bulbs by posting them to me. I thought this was excellent service because not only did I not have to wait around my house for a person to come between x and x, but also had the convenience of it just arriving after I let them know the attachment type (bayonet or screw in). (They did offer to send both at the time but I thought since I enrolled the help of their service in the first place as a environmental footprint reduction type measure it was best I call back with the exact specifications).
My light bulb arrived in the mail...surprisingly intact. As for functionality, it has certainly improved since the last version, but there is still some delay (really quite minor). Another reason that could cause a delay apparently is how far the electricity has to travel around the circuitry in your house before it gets to the particular appliance. Nevertheless I have adjusted (can't expect that everything will be the same when making environmental decisions in one's life, sometimes we have to change our behaviour and expectations as well).
So, thanks Mr/Mrs Climate Smart service, appreciate the swift and personable customer service.