As soon as the application is approved, Halfords send the LoC to the employee via email. For auto dispatch to work and for LOCs to be sent instantly after approval, a client would need to have a Direct Debit in place as LOCs are not dispatched until a payment is received.
Emails are sent to the email address the employee has used to make their application and some employees forget they may have used their personal email instead of the work email.
The process is instant because it's automatic - RG sends information to Halfords as soon as an application is approved via API /please note that the approval period is longer for clients on post-approval, because an administrator needs to go and manually approve the application in the Reward Manager/ and the API triggers a command which automatically sends the LoC.