Call and ask for tech support.  Explain that you received an approval but the information is blank, no unlock code, no instructions

The unlock code should have been included in the email along with instructions to insert a SIM card from a different service provider in order to initiate a pop-up box to enter the unlock code.

Hi @StuartIsto, we want to help you get your device unlocked.

To start, are you checking the device unlock page for your status? If so, please check your email for this message, and let us know if it's also missing your unlock instructions and code. Additionally, try submitting your unlock request again as this will resend your unlock code.

Please share the results with us here, so we can start looking into this in further detail if needed.

Dylan, AT&T Community Specialist

I sent a new request for an unlock and this time got no response at all.

Advice?

I had to call up twice. The first guy told my husband he was an (Edited per community guidelines) and promptly hung up on him when he asked for a supervisor, then I had to wait on hold for an additional 45 minutes to get back through to another person. I have been fighting with AT&T for almost a month now. 

Hi StuartIsto, we're here to help with your unlock device request.

We want to get you into a Direct Message to further review. Check your Direct Message Inbox (it's the chat icon next to the bell icon in the upper right corner of the Forums).

In the meantime, please gather the IMEI of the device. Please submit that information in the Direct Message.   

We will get started on figuring out the root cause and work towards a solution. Keep an eye out for the DM.

Thank you for contacting the AT&T Community Forums.

Jeff, AT&T Community Specialist

Still no help from AT&T

No explanation - no email,

no unlock code.

Must be some way to unlock this phone

Do any of the internet unlocking services work for this phone?

I'm having the same issue with ATT with a Samsung note 10 plus that I used to use. The device has long been paid off and the account it was used on has long been closed and its even showing up as eligible for unlocking in their system but EVERY SINGLE TIME I submit an unlock request, it is immediately denied because they claim the device is currently active on a different ATT account, which is clearly straight up bul*****! I was on the phone with their so called "support specialist" last night for at least an hour and a half all together, accomplished ABOLUTELY NOTHING, and was talked down to and treated like a kindergardner. The totally incompetent "specialist" was incredibly rude, condescending and unhlepful throughout the entire interaction. Eventually, I was told that my particular issue was just unresolvable and the only thing they could suggest was to hangup and redial a different customer service number that the "specialist" knew full well was already closed for the day, but of course that minor little detail was never mentioned. This utterly pathetic excuse for a "specialist" are the type of people that ATT puts in supervisory roles because the call had been escalated twice to even reach this person and yet the moment I asked to speak with someone who knew their job duties well enough to resolve my support case, I was told the call could not be escalated any further. Naturally, I then asked to speak to that person's immediate supervisor and was then told that they did not have a boss or supervisor. So not only did they flat out refuse to escalate the call any farther up the chain of command, they also flat out refused to let me speak to anyone higher up than them and were incredibly uncaring, unprofessional and rude and told me multiple blatant lies and were intentionally misleading about everything they said. Completely unacceptable and unforgivable. Ive been a long term, loyal customer of theirs for over 20 years, but this is the breaking point for me. If this isnt quickly handled to my satisfaction, I am not going to hesitate a millisecond to cancel my account for good and take my business somewhere that actually values it and treats me as such. Nothing will ever change if people are willing to tolerate such utter incompetence and indifference towards the customers who keep them in business. The only way to change a work culture such as this is to strongly and loudly continue to officially file complaints, leave truthful reviews of the horrible service for anyone who could possibly read it, and last but not least, immediately take our business elswhere when and if if these issues are not adequately addressed in a timely manner. Good luck with your situation. Dont put up with thier bul*****! Punish them for it. We have every right as paying customers to expect and demand polite and effective service when we have issues like this that are no fault of our own. My coming coversation with them tomorrow is going to be quite interesting indeed...

@sdutton2

Probably can be summed up best from your own words... "used to use".

Phones that are no longer being used on the AT&T for a period of time are deregistered which means they cannot locate the IMEI in the system.

If you are unlocking as an existing customer, they run into the problem of any current phone you are using on your phone line which may or may not be unlockable but it definitely doesn't match the IMEI of the phone you are trying to unlock.

50% of the people you speak to on the phone are not even in the United States. (that's true for all carriers)

The best way of bypassing the peons in CSR is to file an FCC complaint online. The complaint is forwarded to someone in upper management and they will contact you. They will have to manually research the IMEI to verify it is an AT&T phone that is eligible to be unlocked.

It's always easier to unlock phones as an existing customer/active device. 

I am also facing issue. I want some support regarding this. 

I am still in the same predicament. I think one can get a contract with at&t for 2 months and then request unlock code from them.