Do I need a prescription to purchase?

Are you an English based company or will I have to pay high shipping costs for my product? I notice the price is in dollars......?

Does stronghold kill ticks as well as the listed parasites?

同じようなものを他で購入したことがありますが、有効期限切れのことがほとんどでした。こちらの製品は使用期限内のものになっていますか？

Does this pack contain 12 tubes or six please? The picture has that it contains 6 tubes but then has a '12' in the bottom left corner of the packet -- and your description says 12 . . . so is it 12 months supply or 6 months supply (assuming a full tube is used each month? Thank you. Melinda