Charity caller. Has called 3 days in a row. Not leaving a message, I called back and after an international ring tone for 4-5 rings, then switched over to Australian ring tone, then message saying “You have been called by a charity you may support or have supported in the past”

Caller: Spam

It is a Spam caller. Just block them.

have had this number + very similar numbers ring me the last few days, never leave a message, upon ringing back I often just find static, and then I hang up and never hear from them again. i rarely get spam calls so this is odd

Keeps calling me and not leaving a message, my phone says it's spam.