answer has to be 900-100 words.

5. David is a professional photographer. He goes into his local department store to purchase a new digital camera for his business. When discussing the various models with the sales assistant David states clearly that any camera he buys must be compatible with his photographic software. The sales assistant chooses a particular camera and says that this would work perfectly with David's software. David buys the camera for 99, paying for it on his credit card. Following a commercial shoot David goes to load the images he has taken onto his computer only to find they are corrupted due to the camera's incompatibility with his software. When he returns to the store to request a refund a different sales assistant refuses, stating that the camera is fit for its purpose in taking photos, and if David wishes to get a refund he can only do so from his credit card company. Advise David as to any rights he has under UK law to request a full refund from the retailer and the credit card company, citing the relevant sections of any legislation you refer to