The Robocalls Problem Is So Bad That the FCC Actually Did Something
“Hello, we’ve been trying to reach you about your car’s extended warranty.” After years of seemingly unstoppable scam robocalls, this phrase is embedded into the minds of many of us. Last month the Federal Communications Commission (FCC) announced it was ordering phone providers to block any calls coming from a known…

Should have googled this number first when I didn't recognise the missed calls as when i did answer last time they rang, they instantly hung up. I immediately checked my phone account afterwards and had £3 in call charges on my free minutes account. I have rang/recieved no other calls to numbers that charge, so i suspect you instantly get charged when you answer to it.