As others have said, if you wanna bend it get it red hot. But be careful it's very easy to burn yourself or have some sort of other nasty crises if things go pear shaped. That thing will hold a lot of heat.
It seems to be a current model, so you should be able to get a new grate.
But yup it's a cheapie. It looks not bad for a budget stove though.
Best bet is to bodge it till it's focced, while saving for a new un. You'll probably still get years of use out of it. Good stoves will give you plenty of control.
Be careful what fuels you burn. Wood is best, but I burn smokeless fuel during the week, or when I want it to smoulder away while I do other things or go out for a good few hours, or overnight burn in winter etc. The smokeless I use is sure fire, burns to a powder and only smokes up the glass when set near minimum burn, but usually just wipes off.
Coal is a no no, particularly if you have a lined chimney. Lined chimneys are really a must for small stoves. But even without a lined chimney coal isn't good, the flame is too long and hot, eventually you may crack the top plate.
Good grates should last almost forever with wood, but with coal or smokeless they will eventually burn right through. I've seen many wrecked grates propped up with tin cans in hostels.
