Mail about "return the rental device"?

[Hyunah]

DSL

Dear Mr / Ms,

hello, this is Hyunah xxx. 

I made an internet contract on October, and the engineer came to my apartment in December. So I told the landlord to install the telephone line, and it is in progress.

But, I have the e-mail as attached picture, and I have no idea what to do. 

I am going to contact you after telephone line installation. Is there any problem?

Best,

Hyunah

Edit: @Hyunah please don´t publish any personal data.

[Kira]

Dear Hyunah,

welcome to the Vodafone-Community!

According to the sheet attached,  your router has to be send back because your order could´t be realized.

For further information I need your customer password. Please send it via PN, if you like to.

Kind regards

Kira