Grint's credit card was recently stolen and was alarmed when he was overloaded with dozens of letters and emails about his hunt for love, reported Female First.
"I don't usually care about money that much. But when I had my card taken I cared about that.
"And the guy who did it joined loads of different dating sites. I kept getting post and messages about it all the time," the 25-year-old actor said.
The 'Harry Potter' star does not need any assistance from online dating sites as he has been dating a mystery girl since last year.