What should I do

So I usually talk to my boyfriend everyday but I haven’t spoken to him since Thursday and he hasn’t seen any of my messages and when I try to call him it goes straight to voicemail which means his phone is off and he has so many problems with his phone so I think it might be broken which means he has no way of contacting me and also we have a long distance relationship and I’ve come home for the week so I need to see him. I know where he works and his schedule so do you think I should just show up at his work at the end of his shift today?

Btw it’s deffo nothing bad happening his phone is just really old and fucked up and he literally has no other way of contacting me. (He doesn’t have a computer, he doesn’t have WiFi, he doesn’t know my phone number by heart, his room mate doesn’t have a phone etc. And he’s been busy with work so doesn’t have time or money right now to sort his phone out)