DoubleDown Casino  -  purchase of chips that I did not want

DoubleDown Casino,

A purchase of several hundred dollars went through on my Double Down account tonight. I did not want this. Please contact me via my email address to tell me when this charge will be refunded. Otherwise, I will notify my bank to reverse payment. This is extremely upsetting to me and I would like to see the issue resolved very quickly. Thank you.
Lauren Austin
[protected]@comcast.net