What is going on with the cabinet, or is there a cabinet? Does it have doors that create a center line? Does it have an opening for a basin or is it a vessel sink basin (a bowl that sits on top of the cabinet). A picture would help us help you in the best possible way, but not having seen it- 99.9% of basins must be centered under the faucet. For splashing and for aesthetics. Exceptions are rare. Good luck! I hope to see a pic and get more specific!

The faucet should have the name of the manufacturer like Kohler, Delta, Moen, etc. usually at the base of the faucet. Or there could be a logo instead of a name. In any case it looks like the weight is either missing, has slid down so it no longer pulls the hose tight to it's receptacle, or that the hose is tangled and not free to move underneath the sink. These are the likely reasons why the facet head sags down and doesn't stay pulled tight to the receptacle. If that's the only issue you may only need adjust the hose to move freely, or to secure the weight on the hose so that it is still pulling on the facet head when not in use. Cheers, Paul

Probably not, this is just an ad.

No. I'm not sure how my post ended up here. I'll repost. Thanks for the heads up.