Having trouble getting prime music

[emd1976]

I usually listen to prime music through my echo, today I moved the echo and had to connect to a different wifi network, after doing this Alexa will no longer play prime music.  I tried moving it back and connecting to the original wifi, have also tried turning off at the wall but it still doesn't work.  Everything else works fine, it's just prime music that she can't seem to play.

I'm assuming I need to link my prime account with Alexa again but I've been trying for the last hour, have googled it and cannot for the life of me find out how to do it! can anybody give me a dummies guide? Thank you

[emd1976]

also, have just tried on the alexa app and if I choose for example '80s' music on there it will play through my echo but if I ask alexa to play 80s music she says she can't find any!