What happens to my Wero when I the SIM card in my device? August 12, 2024 14:06 Updated There is no consequence for changing your SIM card. If you have a new number, you can simply change that in the Wero app. Related articles I use my phone to make payments. Does my mobile phone operator have access to my personal data? How can I protect my data in the Wero app? Who has access to my bank account? Is Wero secure? Are all payments made with multiple devices synchronised in the payment history?