Question
How can I re-create Remittances?
Answer
When you are in the process of producing your remittances through Accounts > Purchase Ledger > Processing > Remittances; after searching the account code and continuing the process, there are several pop-ups that ask to print or email these, then there is another pop up that appears, asking if you want to remove the Remittances. 
If you selected 'no' to remove remittances at the time of processing then you should be able to send them again.
You will need to do this through : Accounts > Purchase Ledger > Processing > Remittances
Enter your account codes, the Bank Account and click Continue
It will give you the option to email and print the remittances again and ask if you want to clear these at the end.
However, if Yes was clicked at the time of processing the remittances then unfortunately there is no way to resend them.