I was told my Samsung S8 was compatible with their system. Install the new sim card they sent and all seemed good with the world for several weeks. Then I couldn't answer group text by could change to regular text mode and could answer the orginal sender. Then I fould I could not send pictures any more. Later could no longer answer group text for could no longer change over to text mode. Another week passed and then found I could no longer schedule text messages. Different menu came up but schedule message was ont on it. Then if message was over half page it would not send. Just sit there and little blue wheel just spined around and message never sent. I was able to select the bottom portion of the text and cut or move it to clipboard. then was able to send smaller text. Then that function also went away. Consumer Cellular just said my phone was no longer compatible with their system and could solve the problem if I bought a new Samsung phone for $700 to $800. To expensive price to pay for fixing their problem.