Synchrony Bank review: The customer service attitude and excessive charges for their website error

We received a "return check charge" for a web payment. When we called to determine what that was for they notified us that the electronic payment did not go through. We have an email confirmation stating Thank you for making your payment." Speaking to the support person, he started talking over my wife and telling her is was an error on her side and the charge would not be removed. The website and email indicated that it was accepted. Only days later did we receive the ridiculous charge of returned check fee of $30. The fee was completely wrong in the first place and the help desk was unprofessional with my wife as she was trying to understand why we received the charge. The help desk person got upset and just started talking over my wife as she asked for clarification of why their system would tell us it was accepted only to charge us an extra $30 later saying the payment could not go through. All valid questions and a reasonable ask for clarification. After he raised his voice to my wife and talked over her multiple times she asked him to stop doing that and then asked to speak to a supervisor. This was even worse as the lady that took over the call was even more rude and disrespectful in her tone and demeanor. This should have not been a charge to us or notification of the payment issue should have been presented to us at the time of the error so it could have been corrected. It seems that Synchrony is only interested in charging fees and not providing any level of customer service or support.