Dec 2017 BOGO offer
Added a line during DEc 2017 and enrolled for the BOGO offer. Got an Iphone 8. Unfortunately my friend has to leave to India and I continued to pay for the last two years. Since the contract was over I spoke with the customer care and then disconnected the third line as I was not using. AT&T was crediting 23.34$ for the last 21 months. The offer was BOGO 700$ off, until now I was credited only 490.14$. When I spoke with the customer care representative they could not see the offer and they say that they have paid off all the 700$ which is not true.
AT&T still need to credit ~$210.
And now they say that you have cancelled the line and hence could not credit the amount. I disconnected the line after speaking with the customer care representative who gave an incorrect information. Also the customer care person informed that I will still receive credit after I cancel the line. I am looking for an solution