Poor Customer Service

I am extremely dissatisfied with the way my issue has been handled. Your app has blocked my ability to use a gift card, and despite submitting a complaint over two days ago, I have received no response.When I called the number displayed in the error message, I explained the situation and was told it was not an app issue. I was then transferred to the card department, where the agent insisted I must use the website to redeem the gift card. This is unacceptable, as the error originated in the app itself.This experience has been frustrating and reflects very poorly on your customer service. I request that this matter be escalated immediately and resolved without further delay.I expect a prompt response and a clear resolution.