Horrible bug that makes the game unplayable

Dear Mojang.

I am reporting a bug today that is stopping me from playing and enjoying the game, I have reported this before but I got no response and I am quite cross with this.
The bug is, whenever I move, place blocks, destroy blocks, kill mobs, take damage or indeed anything else along those lines, the game will sometimes delete the progress that I have done, and put me back to where I last saved.
The solution I would think would be to either fix the bug OR put in an auto save feature that automatically saves your progress at certain times, if there is an autosave then I want it to be able to save at once every 5 mins to once every 2 hours, I would really like to see an autosave feature it Minecraft, if there was an autosave, I would start playing Minecraft again, an if there is an autosave feature I would make some in-app purchases to say thank you.

Yours sincerely
BeansRat89