They call here for 'Mrs Peterson', thinking that my boyfriend and I are married, and I'm using his last name.When I tell them he's not around they say 'I'll call back later'. Usually I get "A local charity" but they won't tell me which one, but today I got "Shelley" and she hung up almost before she could finish her name.It's a Regina number, and I'm pretty sure it's a scam.

Caller Id said nothing I didn't call back.

they phone all day long but hang up when you answer.

They've called 2 or 3 times today.  I say hello, and then they immediately hang up.  Probably trying to collect active numbers for telemarketers or something.

Same experience as Sara. They said they were calling from a local charity and wanted to speak with the head of the house. I asked them which charity they were with, andthey said one that helps people in need. At this point, I told them to pack a lunch, but I am still receiving four to five calls a day from them. I called both Sasktel and the police and neither say they are able to do anything about them.

this is who is calling you.  don't ask me why.
Xentel Telemarketing
Regina, SK
2024 Albert Street, Unit A
Regina, SK,  S4P 2T7
Tel: (306) 347-7410
Fax: (306) 347-7419