Transcripts: Diploma/Certificate isn't a Degree?

[mr_rana]

It asks to submit original Transcripts of all Degrees in a University sealed envelope.
Are certificate and Diploma courses part of it?

In my understanding, degree covers only a Graduate and above levels and not a Diploma or a certificate course

Actually I did both Certificate and Diploma prior to my Degree.
But it's hard to arrange their original transcript in a sealed envelope because currently I don't live in my home country.

I hope that attested transcripts of Certificate and Diploma course should be acceptable.

Any opinion