You have asked for access to the account zsc_Qx6fYRo9 and indicated Card SN - FF76C90.
1. As proof of your work with this account, you have added logs:
Phone SN: RF8M11FYSQN
These logs are indeed the result of using Card SN - FF76C90, but with a different account (zsc_1tk5H0jG)
2. You said that you only have one card SN - FF76C90. But the account zsc_Qx6fYRo9 has never been used with it.
3. You claim to have used the account zsc_Qx6fYRo9 and made SM-A750F & A505FN models with it. But unfortunately you do not provide logs of A505F that was maded with this account.
At the moment the account zsc_Qx6fYRo9 is linked to the card AAB775 ** which was used for the first time. No other card has had any operations on the server with the account in question.
Unfortunately, you did not provide any proof that the account belongs to you except for the invoice photo.
In this case we cannot help you, you need contact your reseller or try to remember who can be owner of this card, may be once you share your account him.