How can I tell which seller sent my item?

[brandysnap00]

I purchased the same item from three different sellers.

I received one item so far.

How can I tell which seller it is from when none of the numbers match up and the return address (Hong Kong) is not the same as any of the vendor names?

There is also no date.

[momcqueen]

You raise a very good question. A smart and decent seller includes a packing slip for several reasons. One is Customs processing, the second is that they are proud of their work and want you to know who to thank for it. 

No date, no address, no tracking number?

You could contact each seller and confirm their ship-from address.

But be aware that if you 'bought the same item from three different sellers', they might all be drop shipped from the same location. 

[reallynicestamps]

There are two reasons you need this.

One is feedback, which is voluntary and has no effect on the seller's selling account.

The other is if one of the three does not arrive.

In which case you would need the transaction number to open an Item Not Received Dispute.

Without a tracking number, you would be refunded.

However, it is very likely that whatever the name of the seller, there is only one supplier.