Dr. Filigno used a new Flea Medicine called Revalution on my cat 6/6/18. Today is 6/13/18 and my cat still has some fleas. I don't understand why I was told that it is a better product than Advantage which my cat has always gotten in the past.

Who's Dr. Filigno?

Absolutely call them asap....sometimes they push a new medication because they get incentives. Always stick to what you know, especially if you're not dissatisfied

Yes they are very responsive. Call them and they will resolve this

I don't know I got doesn't have fleas on them check with them

Call them right back and tell the Exactly that. You can also Google it and read for yourself. Good luck