How to contact cash.app/help to change phone number? Do you want to change your cash app phone number and want to contact the cash.app/help desk for this? if your answer is yes then you have chosen the right path to contact the cash app help team for changing the phone number. For this, you just have to click on the given link here and you will get the number to change phone number in just a fraction of a second. https://www.cash-apphelps.com/