A beautiful blond socialite yesterday was sentenced to seven days of community service for charging up a storm on a frenemy’s credit card.

Kashmir Snowdon-Jones also had to pay $4,260.89 in restitution for the bill rung up on ex-pal Jennifer Hirsch’s Visa.

If the leggy model does her community service and stays out trouble for a year, her record will be wiped clean.

She told cops she just wanted to “get back” at Hirsch — but Hirsch told The Post she had no idea why her former BFF would say that.

“We never fought,” Hirsch said. “That’s the real crazy thing about it . . . I still don’t know why.”