someone can't call me but i can call them. before I never used to have this problem but now they can never call me it goes straight to voice-mail and it says on my phone "blocked call, declined by phone" yet I can receive their texts and they don't show up on blocked contacts. I tried clearing cache but still nothing. what do I do?
Welcome to the community!
It sounds like you might have accidentally blocked that person on your device or that person number has been reported as spam and your phone's spam filter is blocking it.
What is the make and model of your phone? You will have to find the block list and remove the number or if that's not it try disabling the spam calls feature.