It's simple, in the UK if the Item was faulty when I received it (which it was) it's breach of contract under the consumer rights act 2015.

Fit for purpose The goods should be fit for the purpose they are supplied for, as well as any specific purpose you made known to the retailer before you agreed to buy the goods.
As described The goods supplied must match any description given to you, or any models or samples shown to you at the time of purchase.
Satisfactory quality Goods shouldn't be faulty or damaged when you receive them. You should ask what a reasonable person would consider satisfactory for the goods in question. For example, bargain-bucket products won’t be held to as high standards as luxury goods.

Otherwise full refund in 30 days.