So glad I found octopus the email response to question and even on the telephone no lengthy wait no problem to small sorted quickly and efficency if you use a refer code such has
https://share.octopus.energy/witty-bee-772
You even get 50.00 added to your account following your first direct debit
No lock in leave when you want but who wants to has long has they stay cheap and good customer support hope be with them for a very long time
Used
https://share.octopus.energy/witty-bee-772 And get 50.00 credit
They made a mistake on my account (not for the first time!), and I was unable to phone them about it as it was a weekend and their call centre was closed. I sent them an email, as they are supposed to have 'award winning email support' which deals with emails 7 days a week with a fast response time - but several days later I had had no response. I sent another email, and 3 days later still no response. A friend of mine had exactly the same experience with them. I will be switching to another supplier, and would definitely not recommend Octopus.
I worked in Energy industry 41 years same company (not Octopus) and I can say they are best of the bunch for customer service.