The Dogtor has EXTREMELY slow response times, it is borderline impossible to get in touch with them when you are a current customer. The only way to get in touch with them as an existing customer is via e-mail. The phone number they advertise on the site simply goes to voicemail and you never receive a call back. They charge more for rush letters needed within 24 hours and it is very obvious that they purposely delay responses so that they can up-charge you with rush fees. I will be taking my business elsewhere.