Deceased Account Holder

My husband passed several months ago.  Finally in March, I was ready to move ahead and cancel his line...and I went to the local T Mobile store.  While I was there, the T Mobile representative said I should not be paying the bill since it was in my late husbands name and she stopped auto pay.  She also submitted the form for a deceased account holder.  Apparently from there, that department is supposed to call me - I'm not sure why.  But regardless of the reason, they were calling my late husband's number!  I didn't know they were trying to reach me.  Last Tuesday - a week ago - and 2 months after I initiated cancelling his line!- the account was suspended.  I can call no one.  So I started a chat with T Mobile.  The bottom line seems to be I need to call myself - I am not sure why they can not resolve this via chat.  But obviously I can't call.  They have tried several times calling me, but when I answer I can hear no one and then I hear a click - all because of the suspension I am sure.  I did go into the local store and they tried calling the numbers for me, but when they identified my account, the phone system would not proceed until I paid the full amount due.  All I am trying to do is get the charges for my husbands line taken off the bill since March when I was trying to cancel his line as well as the reinstatement fee of $60.00.  No one is helping me.  Also, was the worker at the T Mobile store back in March right - do I not need to pay the bill?