After listening to the advice on here, I'm getting a prescription from my vet for Advocate for our cat. And even though they charge £10 for the prescription, it's cheaper using it to buy online, than buying it direct from the vet for £60+ for six pipettes!
I've always used VetUK before and been happy with price and service, and they want £24.54 for the six pipettes. But seeing as I've got to email the prescription first, it's going to be a bit of extra faff, so I wanted to see if anyone had any other recommendations for both price and service from any other online vet suppliers?