Probably just a cheap battery not up to the job lol, can say i have never had such a problem, tend to use duracell, varta,renata batteries which last a few years 🙂
Hello Mohammed and welcome to the LOC hoping you find the forum educational and informative, with regards to the noise you mention l think you should get it looked at, i have owned mine for just over 6 years and it's not a noise i have come across
As long as you are sure you have the master you should be able to either get a decent locksmith - timpsons to do you one or if you can get hold of a fob/transponder you could try the DIY approach. I am sure there is a how to do it guide on here somewhere
Take a picture of the locking wheel nut and pop into a lexus or toyota dealership, or try lexus parts direct and they should be able to order you one from the photograph you have taken,hope this helps 😊