If you've missed a deadline through being withdrawn or by registering late, it may be possible to defer your assignment to a later hand-in date. A deferral would mean that a late submission would have no impact on your final grade. Without a deferral, a late hand-in would result in a cap on the maximum achievable grade. This is why it's important to let us know if you've experienced these issues. Please submit an enquiry so your faculty can assess your situation.
There are no guarantees requests will be successful, and each one will be assessed on a case-by-case basis.