Daughter received a text, purporting to be from Job prospects and that they were bulk emailing as well. It was clearly a scam but how did they get her phone number and email

Caller: Scammer

Received below text:
HAYS Mechanics Needed for Camden council. $50 working on Heavy and Light vehicles. Immediate start. SMS yes if interested to unsub reply STOP.

Not registered with employment agency, nor qualified to be a mechanic... something HAYS would know if this was legit. Beware.

Caller: 0419 579 186

Left a text message reminder for a bone scan appointment in Illawarra that I have never made (I don't even live in the state) - immediately followed by another txt from another number 0427 486 521 advising they have moved location. Both messages addressed to "Foancoise."

Caller: They claim to be Matt pmpw

SMS stated "All good Brent see you wed morning thanks Andy pmpw"

SMS message stating the following: We'll pay you the first $750 one off Economic Support Payment https://COVID-au.info/help/?r=6142###>>>>

How did they get my number anyway

Matt, Grease Mechanical