G930T unlock Error

Was unlocking this phone and came to this error and when I tried again to unlock said I had no more credits please any team member that can help:


Checking Login and Password... OK
Ballance: 12 crd.
You have 12 credit(s) left. This operation takes 8 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G930T
Android version: 8.0.0
PDA version: G930TUVS9CSC1
CSC version: G930TTMB9CSC1
Phone version: G930TUVS9CSC1
Product code: SM-G930TZKATMB
CSC country code: USA
CSC sales code: TMB
Phone SN: R58H504N88E
IMEI: 356251070612295
HW version: REV0.6
RF cal date: 2016.05.02
Chip name: MSM8996
Modem board: MSM8996
Security patch: 2019-03-01
Boot Warranty bit: 0
SIM State: READY
Rebooting phone... OK
Waiting ADB device... OK
Rebooting phone... OK
Waiting ADB device... OK
Waiting for device to become ready... OK
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Rebooting to upload... OK
Searching Ramdump interface... COM255 detected
Reading data from phone... OK
Calculating... OK
Searching server... OK
Waiting for server answer... OK
Waiting ADB device...

Checking Login and Password... OK
Ballance: 4 crd.
Not enough credits
Operation: Unlock
Selected model: SM-G930T
Software version: 36.0