scientology, i got the same call as well and i answered, the person wanted to know if i have been doing courses in that field!!! he asked me for my occutpation and also my date of birth!! i did give the wrong information tho.....i dont think it is something you should worry about!

It was Scientology I just rang the number back

Left voicemail to say they were trying to contact a 'Gabriella' and they were calling from the mailing room of the church of Santa Lucia (very rubbery). The person wanted to verify her mailing address and wanted a return phone call. Has called again at exactly the same time for the last 5 days but not left a message...I wont pick up!

yeah I've had a missed call from this number heaps of times. They havent left proper messages - just one or 2 long black ones where I can hear lots of background noise?

I just had a call from that number again – its my second call. The first time they didn’t leave a msg and the second time they left no voice message but stayed on the line for about 5seconds and I could hear foreign male voices in the background.