You can always change your PIN on your own in one of the following ways:

• Via My Etisalat UAE app
• By texting “Cpin<space><Account Number without country code format><space><Old PIN><space><New PIN>" to 1012
• By dialling 101

You will be required to provide your existing PIN. Each time you do so, a confirmation SMS will be sent to the specific mobile number and your registered eBill email address.