Usual disclaimer, that I am not a cabinet maker, and the only thing I know about wood, is that it is made from the same stuff as my head

There has been reports from other members about Jayco Conquest draws coming open

This fix may be helpful to others

Hopefully the pictures tell a story

This first picture is an original draw latch, with two home made ones, 3 mm higher next to it
Although the home made ones are only made from an old 19mm square 1.6 mm thick chair leg
The overall short measurement of 30 mm long with sides of 13 mm makes it too hard for me to bend
They should be suitable for keeping the draw closed, if the draw has sagged

This second picture shows that there is a bit of adjustment on the draw runners
After adjusting you may have to pack under the runner, to stop it falling down again
This will lift the draw button type lock, closer to the latch
Hopefully you will not find that the runner rollers are worn out

This third picture, tells the story of a frustrated fiddler