If you want work done, you have to pay first and then the work will be done.
Before getting the device unlocked, make sure that the device is not stolen and that no one has found it in transit.
And we will not take any responsibility if your device becomes bricked or dead while doing any software related work.
xiaomi service if your device is Qualcomm and seems to be using xiaomi auth, and by logging into xiaomi auth tool in your P.C, your payment will be deducted with the Key/Token given, then if there is a hardware issue in your phone, we will not be responsible for it.
If more rules come in future then read the policy once.