Strange message under my messages

[melwrde]

Hi,
I saw some strange messages under some of my messages. Please see attached images.(Unable to attach them due to some reason)
Here are the links to images
http://screencast.com/t/mxFaUO8uI
http://screencast.com/t/p76pYt74
One says message was blocked due to violation of “terms of service”.
Also message I have sent has disappeared. But I didn’t violate any rule. I didn’t ask for any email address or payment outside of fiverr etc.
Could someone please tell me what is the reason for this type of messages. I have never seen this before.
And this messages shows a new time(original time and delivered time there) it was delivered to the buyer. I normally reply for messages as soon as possible. So I have a concern whether my messages delivered lately to those buyers.
Also ealier I receive atleast 1 to 2 new messages from new buyers per day. But for the last week I have only received 2 messages from new buyers for whole week. So I have a doubt whether there is a connection between these green and red strange messages with this. I’m fulltime freelancer and this really matters to me.

And should I inform about this strange messages to the fiverr customer care?

Unable to attach the images. So here are the links

Thanks in advance.

Best Regards
Mel