Yes, it's "Shop with a Cop."

Just got a call from this number... Tried calling it back and it rang once, then sounded like someone was dialing... then the line was just dead for a minute... then the call ended. Tried calling back a couple more times & it was busy...

called about the "shop with a cop" program. I've always had problems from people saying they're representing police programs, etc. he wanted to mail me some envelope "charging" me with a donation

Got a call from this number nobody answered