how long to get refund

Refund for what? Did you have a positive account balance that was being refunded? If so, was that for a closed account? If not a closed account, that balance probably got applied to a bill. In any event, if a refund is really due, 4 months is more than enough to wait. Time to escalate to corporate by filing an FCC or BBB complaint.

It was for an account that never worked and was closed over 4 mths ago and every time I call them they tell me refund is being sent that day or week. 4 mths later nothing 

We're here to take a closer look into your refund @redcak59.

Getting your refund is important to you, so it's important to us. Let's meet in a Direct Message for further help. Please check the message icon in the upper portion of the page and reply. 

We look forward to assisting you.

Marilyn, AT&T Community Forums

@@Att help haven’t heard anything 

still nothing...

Hi there @redcak59, this isn't the experience we ever wanted you to have.

Please meet us in a DM, so we may look into what's going on with your refund together. Our message will be found in the upper right-hand corner of this page.

We look forward to chatting with you.

Dylan, AT&T Community Specialist

Still nothing.. Wow.. Keep getting the run around ... 

You should stop dealing with AT&T directly if it's getting you nowhere. File a complaint with BBB or FCC and you most likely will get quicker resolution. Good luck.

That is my plan. Was trying to avoid that but it's how its got to be done I guess