Hi Paul,
You don't say what part of the world you are in, but if not the UK, it might just be the post playing up.
I am in Canada and only received the June issue today. Although MEW generally arrives during the first week of the month, every now and again there is a delay so I wasn't too concerned.
Over the past few years I have noticed that post from the UK to here slows down to a crawl during the summer months (June to August), but, because other than local post, most of my post comes from the UK, it is hard to say whether the delay is in the UK or on this end. Either way, it might be worth waiting a few more days.
Clive