1. Sizokucaphuna intengo yenani lemishini obuza ngayo, futhi inqubo ishesha ukuze ukwazi ukwenza isinqumo ngokushesha.

 

 

 

2. Uma intengo kanye nemigomo yokuhweba ivumelana nawe, sizokuthumelela i-invoyisi yephroforma. Sicela uhlele inkokhelo nge-TT noma i-LC.

 

 

 

3. Ngemva kokuqinisekiswa kokukhokha, sizothumela umshini ngokwemigomo yokuhweba ku-invoyisi ye-proforma.