Long time reader, 1st time poster. Standent, I have the same issue (and still haven't received my West Brom tickets that were 'posted'). I don't recall it being this bad before.
According to COWS, "
What if I haven't received my away match ticket?
Supporters who have not received their away match tickets should contact AFC Bournemouth Ticket Office on 0344 576 1910 (option 1) no earlier than 48 hours before the match in order to request a duplicate away ticket.
The AFC Bournemouth ticket office will send any duplicate requests to the home club and a duplicate away match ticket will be available for collection from the home club’s ticket office."
If they don't arrive in time, we'll have to call the AFCB ticket office some time after 3pm Thursday. I think I did this once during the PL era, at Crystal Palace (remember having to collect from their ticket window).