I have trade-in 3 devices as part of promotional campaign. These devices were submitted, within 30 days, at store where it was checked and received. After a month I received a mail stating that promotional credit is removed for 2 devices as it was not submitted within 30 days. I called customer care when they said that it is a wrong notification and was told that our promotional credit is not removed. But in subsequent billing cycles I noticed that I have been charged for 2 devices for which promotional credit was removed for wrong reason. I am really frustrated and don't understand whom to approach to resolve this issue.
