Is there a glitch of getting a party hat in runescape?

there was a glitch of getting a blue party hat in runescape the way u did it was get enough runes to use the tele grab go to dranor and pay the bank guard 50 gp to see the film of the bank getting robbed and when the wise old man tele grabs the blue party hat u do to so u get it but i think it has been patched

thanx for listening bye :)