Reserve online and collect in your local store is a fantastic service, I have used it many, many times. They accept any returns instore too.
Paypal has protected my interests on Ebay several times. It is a very fast and secure way of paying. The only downfall is giving refunds - it takes far too long to add funds from my bank account.
Amazon alwqays has fast delivery times, and their customer service is excellent .
I always use medicAnimal, their prices are the cheapest on the web, and free delivery is really important.
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