Beware that there is also no-hang up scam. Below details are from wiki -
Another simple trick used by the fraudsters is to ask the called parties to hang up and dial their bank, but after the victim hangs up, the fraudster does not, keeping the line open and remaining connected when the victim picks up the phone to dial.[4] When in doubt, calling a company's telephone number listed on billing statements or other official sources is recommended, as opposed to calling numbers received from messages or callers of dubious authenticity. However, sometimes hanging up and redialing is insufficient: if the caller has not hung up, the victim might still be connected, and the fraudster spoofs a dial tone down the phone line to entice the victim to dial. Then the fraudster's accomplice answers and impersonates whomever the victim is trying to call.[5] This is known as a 'no hang-up' scam.[6] Hence consumers are advised to use a different phone when dialing a company's number to confirm.
When in doubt: hang up, look up, and call back "from a different number".