Why have I not received an invitation email or an e-mail after I requested one for ‘forgotten passwo
This e-mail may have ended up in your spam folder. Therefore check in your spam folder if this e-mail is here. With a Gmail account, the spam folder is in many cases a "hidden" folder, so there is the experience that the mail has not arrived at all.
A possible solution is to perform the search "label: spam jobapp" in Gmail in the search function. After this the mail will most likely be visible.
Is it possible to cancel my offered shift?
Check with your supervisor for cancelling an offered or accepted shift.
Why is it not possible to offer a shiftreplacement?
The functionality "Shiftreplacement" is not on by default for every store.