Not bad service just no service.

My husband passed away in October,2021. I have been trying to change the account into my name and also change banking details. I went into a call center but was told I didn't bring the correct documents, even after they had told me what to bring. They gave me an email address to send the documents to - I have done this 3 times as well as phoned in many times. I am desperate to sort this out, please help.