WES : sending transcripts to WES, am I supposed to send each credential in a different envelope or all in a single envelope?

I got Bachelors and Masters Transcripts sealed in separate envolopes ( got one reference number for both)
My wife got her Bachelor transcripts in a sealed envolope. ( have different WES reference number)

My question is, Can we send all these in one courier to WES or Should I separate mine and wife’s transcripts and send 2 couriers ?

In one Courier you can put two different envelopes and label them with respective reference numbers and details and send it so that yours and your wife’s Transcripts are not mixed. Even if you send two separate it shouldnt cost you more as weight wise it will be same amount.

Thanks a lot Kapil, will try that.