How did you know that the both the sellers were buying during that 9 days?

click on their id.

Then up the top^^ click: advanced search.

Then over to the left << click : by bidder.

Check both boxes :  Include completed listings (last 30 days)                                          

                            :   As high bidder only.

this will tell you what that ebay ID has been bidding on and buying.

If they have left feedback for anyone within the timeframe you have been waiting for your items, just click on their feedback number, and check *feedback left for others* 🙂