Beware of scammers

it all happened when i received a call from an unknown number but not titled unknown. The caller then said i had an issue with my account so i should click on the link they will send inorder for him to help me .so i click on this link which took me to a site but I remembered that it has happened to my relative before so I immediately called mtn to lock my account as i already gave part of my information to them. But thank God, I got lucky and got away from that theat and scam.