“I purchased Heartgard for the first time recently. Then, when a fax was sent to my vet they would not approve the prescription. I was not happy with the vet I was bringing my dogs to see and changed vets. When I contacted customer service; a young lady helped my with switching my order to the new vet (very easily and quickly) and my new vet approved the order right away. My Heartgard was sent right away. I am very happy with the service from Allivet and plan to put Heartgard as a renewable 'script on my next order. Thank you, Allivet, for your help :)”