Another scam call. Hung up when I answered. Tried to call back but line dead. Now blocked

Scam

They won't talk to me, when I start commuting Russian. Keep asking me to speak English. Occasionally I speak German, French, Vietnamese, Thai or even Mandarin back. I know a lot more languages, as I've answered calls at work, much to the amused of colleagues. Occasionally have asked for me by name, but I have a whole another back story memorised, right down to parents maiden names and DOB

Caller: Continuously calls me. There is no letting up.

It's getting painful having to deal with so many menacing calls.

Scam! No message left

called regarding free upgrades to water heaters