The best way to stop that is go deeper, you can only teleport if your under lvl 20 wilderness! Over that and it's no teleportation unless you have a dragonstone ammy (amulet of glory) then you can use that to teleport from lvl 30 and below wilderness. Firstly, dont pk in amulet of glory use amulet of power theres only +3 bonues difference but theres 90k price differece

. Like I said go higher than 20-30 and you'll get those pks for sure! Oh and get your magic hgih enough to do snare or entangle these are deadly spells for rangers

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~Demon (hopes this helped)!