Use prepayment key early

Hi
I’m changing prepayment electricity supplier to Bulb with a supply start date of 30/05.

Not sure current credit will last until 30th.Can I use new Bulb key(already received) before then or should I top up the original key and use the new one after 30th?

Hi @Stevee2 - welcome to Bulb. there’s more info on how to start using your Bulb prepayment key or card on our help centre: https://help.bulb.co.uk/hc/en-us/articles/360006251851-How-do-I-start-using-my-Bulb-prepayment-key-or-card-. Let us know if we can still help with anything. Cheers, Clem