Has anyone purchased anything from www.online4golf.co.uk as I need some feedabck to weather the are reliable

Rule No1 - They have no contact details at all on their site (unless I am blind). Therefore, if anything goes wrong you have no phone number or address. Personally, this is the first thing I look for and I thought they had to have this on by law - but could be wrong??

Looks like they're a front for onlinegolf.co.uk who are a very respectable online dealer!
They should say so, though!

Try clicking through on any of the products!

I don't think it is so much a front as an elaborate affiliation scheme by an individual. I would actively avoid ordering anything from this site. That isn't to say there is anything wrong with ordering direct from onlinegolf.co.uk.

online4golf is linked to onlinegolf, if you notice when you click on a product it takes you through to onlinegolf's website.

It is an affiliate scheme. And it ain't that elaborate.

Links go via a site called www.awin1.com which records the click-through and credits the affiliate, a Frank Sawyer in this instance. This is exactly how Google and the like make money from ads.

Ultimately you are purchasing direct from Online Golf and your contract is with them.

Results:
Domain name:
online4golf.co.uk

Registrant:
Frank Sawyer

Registrant type:
UK Individual

Registrant's address:
The registrant is a non-trading individual who has opted to have their address omitted from the WHOIS service.

Registrant's agent:
Schlund + Partner AG [Tag = SCHLUND]
URL: http://registrar.schlund.info

Name servers:
ns33.1and1.co.uk
ns34.1and1.co.uk

Any UK site equivalent to www.topgolf.fr ?
Seems their prices are the lowest I can find - e.g. Cobra Speed driver 299 EUR = 205 £... But are they reliable...no idea, and seems no seat in Europe, only in USA.

paco, try www.golfalot.com the price comparison site. You'll find cobra speed drivers for much less than £205