True to whatever the others have said. Ignore them. I cannot emphasize this enough. You gotta to be mentally and emotionally strong to fight them. I also got them sending me the full add of my neighbours from my whole block. Say want to give us good service. Ignore them bro. The more kanchiong and scare you are, the more likely you'll fall for their threats and harassment and the higher chances you'll pay them. You already took the first step to stop paying them right? Move forward and never look back.
Report to the police about it. Might seem redundant reporting cause SPF wont take any actions since its only verbal and virtual threats. But they are the first to come and help is anything happens. So logically you should report to them.
Now you choose la brother. You want to pay the triple amount because you're afraid or suck it up, man up and face the music. After all it's our mistake enquiring about the loan eventhough we dont know they are scammers. So it's only natural for us to face the consequences of our own mistakes.
Think about it, if they really want to do something to your house or neighbour's house they would have done it. Dont need to kpkb to you about it. Be brave and ignore them. Put your hp on silent. Each time they call using new number block them, eventually things will die off you just gotta endure alright?