3 calls in 3 days from this number.  A woman with an East Indian or Pakistani accent says she is calling on behalf of BMO. The first 2 calls I asked this woman what this was about and she hung up.  Today I hung up on her.

Haven't confirmed who has called because I never pick up.

Obviously not important enough to leave a message.

got several calls on my cell phone, I don't answer it and they never leave a message

Called me 3  times. The first time they introduced themselves as BMO something.  I asked what is the purpose of their late night Friday phone call and the lady with Pakistani or indian accent hung up on me.   Today I didn't pick up the phone. No messages left.

Its TRG customer solutions probably on behalf of BMO. Call the number back and after an automated message, you can deregister your number. The company is based out of Jacksonville, FL and they have three numbers - 1.+1 888-878-7400 and 202.289.9898 and 904.562.6968. I'm not saying you should harass them like they've harassed you, but the option is there. Corporate website is here - https://www.trgcustomersolutions.com/

The telephone numbers listed below are out of service. I presume that TGR does not want to be harrassed in the same way that their telemarkers harrass us.  How ironic!

In the meantime, I continue to receive annoying calls from them.