We have revamped the spam protection feature for premium users:
You can either disable the spam protection, enable the regular premium protection or you can apply max protection to all the spam calls
However, if you set it to max protection some legitimate business calls might also get blocked. However, all the blocked calls will be listed in your Truecalelr call logs.
If you're using any battery-saving apps kindly disable Truecaller from that list as Truecaller needs to be running in the background to block calls.
For more help please refer to the link here
Feel free to contact our support@truecaller.com and share the spam number so we can investigate further.