I called back number (03) 8373 4022 reached voice mail but did not say for what company.

some f*ck wit with simply energy

blocked number

no messages=block number

Caller: Marketing scammers

Offered me to change gas provider (10th time in a row).

Same voice heard from different numbers (including different states/prefixes). I think the caller id is faked.

Called the number back it went straight to a voice mail no company name mentioned.

Caller: sum dumb flog

simply energy

Offered to give me 30% off electricity bill without changing electricity supplier company by changing "retailer".
???

Caller: Unknown

Missed call

Marketing number

Caller: Don’t know

Trying to sell me electricity

Caller: JONATHAN

Very rude telemarketing guy named Jonathan. Calls people stupid when we are not interest to have him compare our current electricity rates.

Caller: Fag

Fag

Call back and number can't be contacted. No message left. All the hallmarks of yet another spam call.

Call centre. Overseas.