Dependant visa for marriage and seperation

Hi ,

My ex-wife was on depedendant visa and unfortunately our marriage has ended.
Therefore she returned abroad and I informed UKHO regarding the seperation.

She and I bought received letters regarding the curtailment.

She actually already left the UK and she received the letter abroad as I gave her abroad address to UKHO.
However her letter says that she either has to leave the UK or make arrangements for another visa application.

What we are confused is what does she need to do as she already left the UK ?

Nothing she needs to do. It is a standard letter that is sent out.