This is the BCSPCA. Apparently their policy is to not leave messages because that may be 'disruptive'. However calling three times a day (including Sunday) is apparently less of a bother rather than simply leaving a message.
So I would think if they are introducing their call name don't give them any info. If they say they are the SPCA & people love animals and say they will donate once you give your information they have all they need (yes, some compassionate people will give their Visa number etc. There are 3 entries above mine all with different call names. I think if people want to donate to the SPCA they go through the SPCA, I donate to the SPCA because I have seen the commercial on TV then I go to the SPCA web site. We all have to be careful now. I got the call Wednesday 19/13 @ 6:30pm & did not answer.