Car dealer advice

[Southwell]

I bought my car just under a year ago and it had a clunky gearbox in 2nd which did go away a bit but never really did. I brought it up to the dealer several times but they could never replicate (like usual)
Now it is very difficult to get into second and when you do it almost clunks in.
Do i have any recourse seeing as this a continuation of a problem i brought up when i first purchased it and it has got much worse. It's a 2006 and i have a years warranty although i don't want to go this route as it was a problem when i bought it.

Also the engine is very noisy with a clunking noise until it warms up, this has just started though.

When i pull into my garage there is a funny noise until i take my foot off the clutch and take it out of gear, i don't know if they could be a problem with the gearbox?!?

Cheers for any help.