I purchased credits to see how well the system works. I would hot list and flirt to see if I got a reaction. I got a response and used up credits replying, only to find it was a bot. The person had not been online for the last 48 hours. Again I got a message which sounded legit from someone who had been on line, so I replied. Instant bot message came through and never heard back from her. Don't waste your money on credits.