Communication was slow,don't try to phone them, No emails to say sorry, a least OFGEM sorted them out, pity they haven't sorted another company we used.

I have been with One Select since they started in 2016. Their prices have been the best ever since. Yes, they do review the direct debit from time to time and you have to persist with communications. But the upside is this is a really good deal and worth persevering with communications and an ever improving website.

After giving my final reading half a dozen times they finally sent out a final bill. I was asked not to cancel the direct debit as they would only take the amount owed. I would advise everyone to cancel the direct debit as soon as they know they are leaving as One select took a lot more than they should have done. No response to complaint, no apology. I would avoid this company at all costs.

I was with OneSelect for 1 year. The website is shocking, I tried to persist but it did not improve. Entering meter readings was painful. Speaking to someone was impossible, I never managed to. The online chat no one ever answered. They completely messed up my estimate so when I left I had a bill for £235 despite my initial estimates being based on previous years usage, so very accurate. They give a cheap price to draw you in.
Never go with this company.

I dont want to give any stars but unfortunately feedback is not accepted without a rating. I swapped suppliers because i was fed up with previous suppliers increasing the direct debit amount. When j signed up i was told this would not happen when i signed up. We atrted by paying £108 per month. In september this year 2018 they increased the direct debit to £114 and within the space of 2 months they have emailed stating it is increasing to £148 per month. I have never paid £148 per month to any supplier and do not intend doing it now. Have tried to contact them via their enquiries page but no response and i am unable to find a telephone number for them. So due to the circumstances i have informed them that i have cancelled the direct debit until this situation is resolved. I will be telling them that i will pay on receipt of bill monthly then i amonly paying for what i use and my money isnt sat in their bank receiving interest whilst my account is in credit. I dont understand how they can get away with this sort of stuff.

Further to my customer review 17.4.18 and having now been a customer for 6 months, I would give OneSelect no stars if I could. Like all customers attempting to cut their energy costs, I was attracted by their competitive monthly direct debit for my actual energy usage on their 12-month fixed-term fixed rate dual fuel tariff.
However at 3 month bill statement they planned to increase my direct debit by 50% based on their fictitious personal projection of my energy use, despite my providing at least monthly meter readings online, my actual energy use remaining unchanged from the same period last year and my account in credit balance. They backed down when I complained, but then at 6 month bill statement they planned to increase my direct debit by 27% based on their fictitious personal projection of my energy use, despite my providing at least monthly meter readings online, my actual energy use now being 6% lower than the same period last year and my account in even greater credit. What makes this even more ridiculous is they have mainly targeted my electricity consumption which remains particularly stable as it is not seasonally affected. They have so far failed to comply with their own complaints policy of investigating and responding within 10 business days and I can see myself having to involve the Energy Ombudsman.
So unless you are in the business of lending interest free money to energy companies who are also very poor communicators with their customers, I would very strongly recommend avoid OneSelect.

In the beginning they were very good but suddenly, despite the fact that we are £264 in credit they are increasing our monthly direct debit by £26.63! I have emailed their customer services and received an email saying they will get back to me. I have phoned and gave up after 7 minutes. I have now cancelled my direct debit to see if this produces a response! Furious

Refuse / failure to repay credit balance. Although no problems with the actual supply, on leaving Oneselect they are not willing to refund nearly £250 that they have overcharged us.

Their excuses include not having received meter readings from the new company, account numbers not being included in correspondence when they were and simply answering email saying they have a high level of demand.

I had no problems with OneSelect when I started a favourable tariff with them last year. However, since a new meter was installed in July and consequent meter readings therefore not making sense to them (at least I could contact them in July), and also because of a current lack of mathematical ability - totally inaccurate and illogical forecast for future gas consumption - it has gone downhill all the way since then. Because of 'offset' bills, I can't make sense of it, and neither can Flipper which is helping me find a better new tariff. No phone contact, e-mails get standard reply that they are experiencing high volume of e-mails. No wonder! I am waiting for a final bill in order to switch as fast as I can, but believe that they owe me money, so am a bit anxious about that.

I have been trying to get a statement and actual bill from these cowboys since March 2018, when I changed supplier. In August they sent me - after 4.5 months - a letter stating I owed them £182 and it would be passed to a debt collector because I hadn't paid them. I've had two responses ever from them, both standard "we'll look in to it, please give us your details" ones that are then never actioned when I've replied. They now send one escalating debt collection threat every week, and continue to ignore me other than this harassment. Disgusting people and company.