Need insights regarding otp bomb scam

Hey everyone, i know this is nothing to worry about but i wanted to get some insights from people regarding a scam experience i had. I got 2 otp spam experiences, one in the beginning of june (around 29 may to 2 june) and the other today. Recieved calls which were blocked in both occasions (from diff numbers and truecaller names). One i got prior called me many times and i got otps for days straight (i mentioned above) and i got like 3 right now and one blocked call. Im a bit worried whether my phone no. or my device is being hacked. Id really appreciate it if i could get some opinions on this topic. (this is my first truecaller so i really hope i can get people to help me in this matter 😭😭🙏🙏)