hmmm.. i bought a tool, half metal rod, half flexible metal spring, with a handle that you turn round and round, at the DIY shop at rivervale mall.. probably around $10. a bit hard to use at first, but after a bit of trial and error, works well.. my toilet bowl used to choke quite often, but after clearing.. it stayed cleared..
so the consolation is.. your toilet bowl probably won't choke for a long time after the plumber cleared it.
Yes, my toilet bowl is not giving me problem after that.. but my basin get choke.. my mother actually manage to remove the "L' bar thinggy to remove the choke.. and seems that there is lots of hair trapped there.. Sigh.. all thanks to my mother.