SMS notifications don't come through

I have been failing to notify plazes of my location using my mobile for the last couple of months.

I have a new phone, and have over the last 24 hours tried to

create a new plaze with the UK SMS number
create a new plaze with the wrong german number (well, that won't work)
create a noted plaze with the German Number, this was at a plaze I have been to before

You can check back my trazes to see if any have worked recently, my memory says no.

I used @ throughout. The last test was to see if the sms required an activity string. I am now using a Vista 64bit laptop and so have not configured the plazer to work on the laptop. SMS and web are the only interfaces