You sure are! Vetcove acts as your purchasing agent to retrieve your prices for you on your behalf. So long as you give Vetcove permission to do so per our Terms of Use, you absolutely may use it.
If you encounter a representative that claims you are not permitted to use Vetcove, we highly recommend reading their documentation yourself and making an informed decision. Some representatives are understandably against the concept of price comparison, and will attempt to dissuade you from price shopping. Your decision to use Vetcove is yours, and yours alone!