Call the Border Force (phone numbers to each Heathrow terminal at the bottom here) and explain the situation in perfect detail, including that the school won’t enrol her without the proper entry stamp.
If they aren’t helpful, ask for a chief officer.
You should be told what to do. Please let us know what happens by writing an answer of your own
Credit:stackoverflow.com‘
4 Mar, 2024
5 Mar, 2024