another junk call !! called many times but no sound

I keep getting calls from this number that hang up when I answer. As my company invoices on a time based management, who should I send the bill to for all the time they have wasted?

Caller: 0488 872 020

Called every hour. I didn't answer as didn't recognise the number and now I know why. Very annoying.

Scam. Don't bother talking, just hang up on them.

Caller: Unknown

Three calls on my landline tonight from this number. Went through to answering machine but no message left. Scam!

Persistent caller but I never answer phone anyway as leave it to go to answerphone, just keeps coming up on the caller list. Has rung at least 4 times just this evening.

Keeps calling and hanging up , not sure where to report it or how can i block them from calling

They rang me. Hung up immediately. Definitely a weasel scammer!

Pest

Picked up. Nothing. Read these comments and guess it’s a scam number.

I answered this call and was told that they were replacing globes for free. SCAM
Don't trust them.

Brian, why didnt you answer when i said "hello, brian?"

Caller: I don't this number, I believe they are scammers

These scammers caIled out landline incessantly until 9pm at night!

Caller: No one speaks!!

Called me multiple times in the last few days. No one talks when I pick up so I have put it on my ignore list.

Definite scam. Don't answer. Rang my mobile and landline several times. I didn't answer

Don’t answer the phone if you see this caller ID.
I’ll be reporting this number. They’ve rung half a dozen times this afternoon/evening.
Definitely some sort of scammer.

Moronic scamming pests called twice within half an hour this evening. Now the number's blocked so at least the phone won't ring.

Called four times within 2 hours and didn’t leave a single message in my answering machine. Annoying!!

let it go to voicemail - no message - hung up

Caller: 0488 872 020

They claim they are there to find your best electricity deal with your own provider.
I said. I can call my own provider myself.
She said, they don't always update you.
She wanted mu electricity bill and meter reading.
I said I'd call back.
You can't call them back.
Seen as a scam.