Anyway of adding payment details

[#1]

I recently cancelled my account with Plus net after being with them for about 20 years (when they were force9). I deleted my payment details to make sure they didn’t have them on file after recently being scammed elsewhere.
Today I got an email to say I was £7.29 in credit.
It can’t be reissued to me as there are no payment details on file and it now says I can’t edit the account to re add them either.
Is there any way of sorting this without having to do through the tediousness of calling customer service? I also need to keep my line free as my father in law is currently dying and I’m awaiting updates.
Thank you in advance.

[#2]

This is why bank DD accounts should be left open until final bill has been issued, you're far from the first to fall into this trap. Sadly I think the only way to remedy this is via the phone. 

[#3 · Accepted solution]

Hi there,

Firstly, I’m sorry to hear about your father in law, sounds like an awful situation and I hope you get through it alright. 

You should receive an email shortly to provide your bank details so you can claim the refund. 

Failing this, we’d issue it as a cheque. 

If there’s any issues, please let me know.