Hey there @Isabelle07136 - so sorry to hear you are having issues with Calendly! Do you mind telling me a bit about what’s going on? Perhaps I can resolve them! =) 
While Calendly does not have an inbound phone number that you can call for live support, there is a live chat option available 24/7 for all users on our paid plans. You can access this by clicking “help” when logged into your account. If a phone call or some other form of calling (screen sharing, for example) makes sense you’ll be able to make it happen via live chat as well! I hope this helps! Please do let me know if there’s any way I can support you - I am able to resolve most issues right here and I’ll be here all day!