Can't reach contact after unblocking

I (iphone) unblocked a contact(iphone) and now I can't send or receive any phone calls from them. When they called me I was able to answer the phone but was not able to hear anything. When I tried calling them it goes straight to voicemail. I was able to receive a text from them but it came through as a sms. When I try to text them it says imessage but never says delivered, just turns green. I have updated, reset my phone and deleted the contact but none of that seems to work.

Re: Can't reach contact after unblocking
Customer Service Rep

We know how important it is to be able to make and receive phone calls. Let's help you get this issue resolved. Please Private Message us to get started.