So its showing ive been sent a PM but there is nothing in my inbox. Any ideas please

Heya.

Earlier we had a bit of a system issue where a spam bot decided to send out some rather, ahem, colourful, private messages.

Never fear though because I got out my digital dustpan and brush and swept it all away before most saw it.

So yes, you did receive a private message but it's since been deleted. Any notifications should clear in the near future.