Can you advise of a reputable company that will collect my puppy and deliver to me.Due to reasons I can not collect.

is the puppy from another country or just uk to uk piont.

It's going to cost you for same day delivery in the UK about £1 a mile (if you can find a company that will take a puppy).

Personally, I don't much like the idea of couriering a puppy.

You could have a look at http://www.Animalcouriers.com
Email: animalcouriers@aol.com

They claim to "transport door to door or arrange for your animals to reach destinations throughout the UK, Europe or beyond"

I don't know anything about them.  This info is from a flyer i picked up at Crufts this year, but they look worth a try

Hope this helps