If someone is out walking the streets and banging on doors...I can assure you it's not for your benefit.
If he does come back...he will try to baffle you with figures and tarrifs... all resulting in pointing out, that you are paying too much with your current supplier....and you will save ���s by joining the supplier he is representing...
As BM say's...use the comparison sites...uswitch..moneysupermarket...there's plenty to compare .Just search for ''cheap..fuel,,supply,,''
You only have to enter ..your post code..how much you spend at present, and which method you will pay by .
You have already got a computer in front of you, so enter those details.
Only then will you find the best supplier...
Do it now, and if the rep returns...you can point out that he is wrong..because you have already found out independently,who is giving the best rate.
...One more thing...lock your back door..!