Many cell phone plans allot a person a certain number of texts each month and charge for every text over that limit. This is for both texts sent and received.
Now, phone calls can be denied, but texts cannot.
Let's say a person (Reuven) sends his friend (Shimon) a bunch of spam texts, which ultimately causes Shimon to go over his texting limit. Let's also assume that Reuven knows what plan Shimon has and deliberately sends him enough texts to cause him to go over.
Can Shimon refer the overage to Reuven to pay, as it was because Reuven sent the texts that Shimon was sent the bill?
Issues to consider: gerama, hezik she'eino nikar, and is this even considered nezek to begin with. Not to the exclusion of others I haven't thought of.