can someone help me for reset my game on Iphone please ?

This applies to both Android and IPhone, but what you do is go into Help And Social, then Contact Support, then if the bot doesnt give a good response ,choose to talk to a member from the human team. The people at the human team will hard reset for you. If you still want to keep your bonuses, you'll have to 100% complete the planet you want to reset on. I hope this helped!