How long till my old account actually closes?

[#1]

I had my final bill on the 4th of March which was in credit £17.81.

This credit was refunded back in to my bank account on 9th of March. 

My Plusnet account portal still says " account closing " see screenshot below.

When will my old Plusnet account finally close as at the moment it seems stuck in limbo?

[#2]

Your account be closed btw, that message indicates this.

It’ll still be viewable for a period of time, as per the data retention policy.