I ordered a Lenovo Ideacentre 3 (Currys / PC world product code 293788) desktop PC in February on the advice of a video chat I had with a customer sales rep. During this chat, I was informed that it would start up in around 30 seconds, and that it would be suitable for basic home computing. At the time, I was very clear about my usage - internet browsing (including youtube), office and listening to music. Within the first few days it started to show problems. Once my desired software (firewall, antivirus etc.) was loaded, I took a lot more than 30 seconds to start up, and it couldn't handle youtube videos, or even stored mp3 files - the sound started to break up, even when no other applications were open and/or running. Over the next few weeks, I rang customer service several times.  The first person I spoke to asked me to wait for all the windows updates to be done. After a few days of waiting, I rang a second time. It was suggested that I just do a full factory reset. I am not in the habit of using sledgehammers to crack nuts, so I spoke to someone else and I was talked through how to reinstall the sound driver. This worked - for around two days. I then rang up a third time, at which point the customer service operative organised its return to the repair centre.  This is when things started to get interesting. I had a phone call from a man at the repair centre who told me that there was nothing specifically wrong with the device, and it was working as designed. I told him that I was advised that it would be suitable for viewing videos online and listening to music, only to be told that wasn't true, because the nature of the CPU would mean it would be suitable for nothing more than facebook. I do not have a facebook account.  I asked about upgrading the RAM, and I was told this wouldn't have any effect, because it was the CPU that was the information bottleneck. I asked about upgrading the CPU and I was told that it's impossible because it's part of the motherboard, which is integrated into the machine. The only logical conclusion to draw at this point was that the machine was not fit for purposes made known and therefore contravened the Consumer Rights Act of 2015. I then went back to Currys / PC World to inform them that I had spoken to Citizens' Advice and, over the course of several days and numerous phone calls, I was eventually promised a call back by a manager within 48 hours. I received that call not within 48 hours, but actually five days later. During this call, the manager was quite clear about the fact that no refund would be forthcoming because it was over their statutory 21 day period. However, sometimes it takes 21 days for this sort of issue to present itself, especially if, as was the case with myself, I was busy at work and didn't use it that much initially. Besides which, Citizens' Advice have assured me that the the Act covers me for six years. I therefore consider their 21 days to be arbitary and not salient.  During the same call, I also asked whether they are part of the Alternative Dispute Resolution Scheme. They are not. I was missold this product. A sales rep advised me that it was fit for purpose, but a repair technician has confirmed that it wasn't. Currys / PC World have conveniently chosen to ignore the expertise of their repair technician, and to hide behind this arbitary 21 days. I am now pursuing a refund via the credit card provider under section 75 of the Consumer Credit Act 1974. At the very least, avoid buying one of these machines and, if you believe that the service I have received is indicative of Currys / PC World in general, then you will seek an alternative retailer for your next computer, or any other electrical device. I have now added Currys / PC World to the long list of firms I will never use again as long as I live.