I downloaded a free photo app. But I deleted it as it wasn't what I wanted. But received an email saying I had purchased something for £39.99. Order receipt no. 358915513.
Could you please advise me or refund this money please.
Did the money come out of your account? If so, you will then need to ask for a refund from whoever took the money from your account. Otherwise, as already stated it could be a phishing email attempting to your information. If that's the case, just delete the email and carry on.