We have despatched 3 items of each,

We have despatched 3 items of each, unfortunately we only invoiced 1 item of each.
I will raise an additional invoice

ผลลัพธ์ (อังกฤษ) 2:

We have despatched 3 items of each, unfortunately we only Invoiced 1 of each item.
I Will Raise an additional Invoice.