Poor Service

Did payment via cellphone app like always and sent proof of payment to e-mail. Received the e-mail with no proof of payment attached. So I re-sent it again and this time got nothing but it charged me. When I called the call center they told me to send it again which I did and it charged me. Still nothing and when I called again I'm told to resend with charges incurred by me. Poor service, time to switch.