Visa isn't progressing.

In two days I'll go into meditation. I'll have no phone for 10days, we ought to leave it at the entrance and take it when exiting.
I'll get out without money or visa for China and I have to change my return ticket now, because I'll have no phone and since it can only be changed up to 48 hours before the flight, and I booked it for a day after my retreat.
It also can only be changed once...I don't know what to do.
If they won't give me a visa, plan is, to go and try from another country, Vietnam or South Korea perhaps? Thailand? Indonesia? I'm confused...