Repeated calls with no one talking

Aussie Bloke from RSPCA, he knew about the animals I adopted 6 months ago, their names and medical history checking in with that and thanking me for my adoption before telling me about a weekly/monthly donation program that is launching soon. Wasn't pushy at all, seemed very genuine, I think it was legitimate considering when I asked if I could organise this online after I speak to my partner he said absolutely once the website is launched next month, didn't direct me to any dodgy sites just said it'd be done through the RSPCA site. Only questionable part was it was done via mobile not landline but that's not too uncommon these days.

Caller: Clever Contacts

Didn’t leave a message. Called back and the pickup was automated for Clever Contacts. Assuming it’s fundraising for the RSPCA as I filled in something online.

Keeps calling at different times over a number of days. Appears to be a telemarketer.

Caller: Clever Contacts

Telemarketers

Repeated calls no message or text sent

Caller: “Clever Contacts”

Unsure if scam or not but called number back after being called once a day for a week with no voicemail left - their message bank said they’re called “clever contacts” and they were “most likely” calling me about a charity they represent.

Repeat calls with blank voicemails

Caller: Rspca??

Calling about free activisty cards for cats, asking for donations

Caller: Flying doctor service

Definitely a scam

Same as above ^