I'll share some information about the voucher logo. Since you've already verified the size of the logo from the invoice settings, I recommend updating or repairing Adobe Reader or Acrobat. This tool help fix PDF and print related-issues including invoice and voucher logo.
After running the update, go back and check your voucher logo again.
About someone to look over your account, we're unable to arrange it here in the Community space. Instead, you can follow the steps below to reach out to our chat or phone agents. They have the tools that can view your account in a secure environment.
Here's how to reach out:
Go to Help at the top.
From the Assistant tab, scroll down and tap Get help from a human.
Choose either Chat or Callback.
In case you need help with other tasks in QBO, feel free to browse this link to go to our general topics with articles. Just look for responses that suit your question.
Drop a comment anytime if you have follow-up questions or concerns. I'll be happy to assist you. Take care and have a nice day ahead.