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"Canjes" is a form of "canje", a noun which is often translated as "exchange". "Devoluciones" is a form of "devolución", a noun which is often translated as "return". Learn more about the difference between "canjes" and "devoluciones" below.
el canje()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
la devolución()
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
a. return
Imprima la etiqueta de devolución y péguela al paquete.Print the return label and attach it to the parcel.
2. (finance)
a. refund
Si no puedes usar la entrada, se la puedes vender a alguien o pedir la devolución del dinero.If you can't use the ticket, you can sell it to somebody or ask for a cash refund.
b. return
Envié la solicitud para que me hagan la devolución de los impuestos.I filed an application for my tax return.