Advive with parents

So just recently my parents made me stop communication with my boyfriend. And they say it should you become human again. And we have been talking behind their back but both of us are getting pissed off at my family. How could I convince them to let me talk to him how we use to. FYI it’s a long distance relationship (hard I know) this whole situation my parents put us in is 1000x hard then anything we use to be on the phone all day I was happy, I was confident, and now I’m miserable, and I’m missing him so much just my parents don’t understand how miserable this all is. All I want to do is call him or run away to him. Also all my parents do is ridicule me because I’m not like them. And they say letters are one of the best way of communication. Tbh in this day and age it’s not. Please ladies any advice is greatly appreciated