Yes, you may cancel the assigned Repairman at any time.
Notice!
If you cancel a Repairman after he has been assigned, i-fix will deduct RM5 from your Wallet.
If your Wallet balance is 0, it will go into negative figures if you cancel an assigned repairman.
i-fix allows you a maximum negative balance of -15RM before you are barred from using the app till you cover the negative balance in your Wallet.