I've found your cat
Someone wrote in to warn other people who may be in her same situation. She said that she had lost her cat and had posted it on several websites. She said that someone emailed her and then texted her to ask a few questions, including when she had lost her cat, and how much compensation she was willing to give as he or she had grown fond of the cat. This person then said that if his or her 'demands' were met, that he or she would arrange for the safe return of her cat. The person then gave her a foreign number to contact him or her at.
The person who wrote in suspected this to be a scam and asks people to be careful if this should happen to them. Do bear in mind that if you do lose your cat, you may want to keep certain details private - for example, a special mark, or a particular characteristic. You can then ask the person who found it to tell you if there are any distinguishing marks to ensure it is the same cat. The vast majority of people who will call you mean well and just want to reunite owner and cat but often it is hard to tell different cats apart from a photo. However there are some people who will try and trick you, either because they are malicious or want to make money out of the situation. In either case, if there are certain traits or markings that can be verified by the person calling you, that would help.