Speedtalkmobile.com Possible Fraud Issues of Concern

I have an account with speedtalkmobile.com I requested cancellation of my account two or more time because they charged my wife’s speedtalkmobile.com account for Five dollars five time in one day; and stating to my wife, that the charge was because her account was autofill enabled, which in my opinion and her is why:

On the speedtalkmobile.com/myaccount (under my account after login) the following option is displayed Knowing that my wife intentionally never activated such a feature, then in my opinion is a frequent act by speedtalkmobile.com; robbing our funds for $25 in ONE DAY is an outrage. CANCELL MY ACCOUNT Please!