Gmail issues ?

Any of you out there having issues with Gmail?

I've got two commissions which are supposed to be coming in from really good n dependable artists, and they've been trying to send them to me for about a month, and I haven't gotten them.... not in the Spam or Junk folders either... no bounces back to their email... nothin'....
I like to use Gmail for big files, but is it starting to show elements of uselessness for any of you out there too?

Maybe I should try a hotmail or yahoo or other account.... :/