Caller: Charity call centre

I've been missing calls from this number for a few months. Today I finally phoned back and got a recorded message saying they were a call centre for charities I may have donated to in the past. If I ddn't want to receive any more calls I could email xxx @ xxx.xxx.what?? The email was recited so speedily I couldn't catch it. Grrrr! So I did the next best thing and blocked the number on my phone.

Missed call, no message left, only found this info related to the number online International format: (07) 3547 7336/ (07) 3547 7336 / 0061735477336
Area Code: 07
City: Brisbane
State/Province: Queensland
Region: North - East Region
Phone Type: G (Geographic Land Line, Fixed Line)
Registrant Company: Soul Pattinson Telecommunications Pty Limited
Local Time: UTC+10:00 13:39:49
The owner of this number comes to: Brisbane, the number is G (Geographic Land Line, Fixed Line) number.

I called back number (07) 3547 7336 reached voice mail but did not say for what company.