Did you call WU and they say the funds haven't been picked up?
Once in a while a receiver will get blocked by WU and in this case you would have to have Z issue you a new receiver - you simply get a WU refund and then resend it with the new receiver.
It's something that is out of Z's control if thats what happen - sometimes a receiver will pick up too many payments and WU puts a block on them - I have over 20 orders and it happen once.
If this is the case I can PM Z for you - I'm not sure what info he would need - perhaps an order number and an email to contact you - or try and get your posts up so you can just PM him - I always prefer PM's rather than email.
Let me know if I can help in any way - you'll be fine - don't sweat it.
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