I had a friend refer me to this site, and I was excited when I seen the great prices in comparison to my vet and local pet store. I ordered heartworm medication and flea meds, one six month supply for my dad's 2 golden retrievers and one six month supply for my great dane. The vet decided to deny the script for the goldens' even though I called the receptionist and asked them to hold on to the fax for 2 days because they had an appointment for their heartworm check on a Thursday and they received the fax on a Tuesday, but they decided to deny it and shredded it because they weren't willing to wait the 2 days for my dogs' appointment (even though they weren't due for a heartworm check for another 2 weeks). Foster and Smith never informed me that the purchase was denied and I didn't find out until my vet check, although that was a hassle because no one seemed to have any idea what I was talking about. They approved my Great Dane's script, but I paid extra to have it shipped within 5 business days and I called today (the 5th business day) and was told it is 5 days after the script is approved - which puts me at 9-10 days after my purchase so there was no point in paying extra to receive it "faster" - money completely wasted for shipping when I qualified for the free shipping! My advise to you is contact your vet BEFORE you spend a lot of money because they will leave you waiting and wondering for days and if you're denied no one will contact you - you have to figure it out on your own. My goldens were covered for another 2 weeks before they needed the heartworm test but my vet still denied the script because it was "too close". Also, be aware that if you are shopping during one of their sales BUY EVERYTHING YOU WANT IN ONE SHOPPING CART. I had my dad pay for his golden's heartworm meds and used the 10% off memorial day coupon, then I went to make my own purchase and it would not allow me to use it a second time so I ended up spending over $100 bucks and my dad saved 10% which didn't matter in the long run when his script was "denied". Just make sure your vet will approve it before you make a purchase - even if your dog is still covered by their last heartworm check, if its too close they may deny your purchase - and foster and smith WILL NOT INFORM YOU. I still like this website, but I just wish they would keep you in the loop and be up front about the "5 day shipping" not starting when you purchase your items but whenever your vet gets around to approving it. I recommend going with the free shipping, you're wasting your money otherwise! 9-10 days after purchase is not within "5 business days" - that shouldn't even be an option for anything requiring your vet's approval.