Boot lock failure

Hi guys,

My octavia elegance (05) is suffering a boot lock problem these days. The lock (on the boot lid) itself is broken and the boot can't close properly.

One week ago after I loaded some stuff off the boot, I wanted to close the boot with normally a slight swing. But the lid was unable to close itself. It did close last time I used it. I tried many times with even more swing but failed.Then I checked the lock itself and found the clip at middle was left out and can't return where it was. I don't know if it is because I tested it too hard.

Anybody had the similar problem before? Do you reckon if I could get a new lock part and replace by my own or it has to go to garage. Would it be an easy and cheap job for garage to do?

Thanks

Jamie