Firstly, though I've only been a Bulb customer for two months, prices have already risen twice. I can understand increases in wholesale energy prices forcing Bulb into this, but why also sneakily increase standing charges? Secondly, I tried to use a referral code. It didn't work. When the person I gave it to complained, instead of support fixing it immediately, the potential new customer was told they had "done it wrong" and should "try again tomorrow". Thirdly, the Bulb smartphone app is useless. Despite me having a smart meter, electricity readings are sporadic and all "estimated" (gas, oddly, is fine). This makes the energy usage graphs inaccurate and pointless, making it impossible for me to monitor my usage accurately (the main selling point for smart meters). Bulb should look at the nPower app to see how it should be done. Overall, Bulb are clearly out of their depth and I cannot recommend them to anyone. I will be switching away at the earliest opportunity.