Do you still have access to the currently registered cell phone number?
Then you can log in to My Reconi. Under the overview of your data, you can choose "Edit" and then "Mobile number".
Do you no longer have access to the currently registered cell phone number?
Then you cannot currently log in to My Reconi. Fortunately, we have another solution for that, via our change form.
The cost of changing the cell phone number per change form is €10 excluding VAT.