FRP unlock failed but credit used

[bl1615]

Here is the error message:


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Factory reset protection Erase start

unknown error (398)

Immediately after running the same command shows this:

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Factory reset protection Erase start

Server message :
Check prices at : https://www.dc-unlocker.com/buy/user_prices

Insufficient credits !

And this consumed 15 credits.

I'd like to request a refund on this since the unlock didn't work...

user name: bl1615

[Valdemaras]

Refund completed last time for you.