When is it acceptable to contact non buyers during the holiday?

Four auctions and almost $80 worth of items won on Wed. 23rd and still no payment or contact.
I sent another invoice today (I usually just let eBay) so this is the first invoice I have actually sent.
When would it be acceptable to contact these people before filing non-paying disputes?
Thanks in advance,
Patrick
edit to add: these are four different buyers.
I sent another invoice today (I usually just let eBay) so this is the first invoice I have actually sent.
When would it be acceptable to contact these people before filing non-paying disputes?
Thanks in advance,
Patrick
edit to add: these are four different buyers.
0
Comments
Hope this helps
Sean
My general timeline is: invoice on day 4 or 5, contact attempt on day 10 stipulating that day 14 is the deadline to pay if they are still interested in the item, NPB on day 14. That's if I get no contact at all from the buyer.
If I do receive contact (but no payment) from the buyer, then what I do depends on a variety of factors.
-CDs Nuts, 1/20/14
*1956 Topps baseball- 97.4% complete, 7.24 GPA
*Clemente basic set: 85.0% complete, 7.89 GPA