Payment request

I received a email from AVG  with refund request Case 12123635 and a ref nr.

AVG ask me for   cardholder name  etc etc.

After sending  al the numbers comes a email from AVG  adn say to me:

Can finf the requestnummer.

How is that possible

Hello A.r. Lamberts.
We'd be glad to clarify this.
It looks like you have two AVG accounts under different email addresses.
You used the alternate email address to submit the refund request, which is the reason our refund team could not find your account details.
Now that you shared the requested details, our refund team will initiate the refund at the earliest possible and send you an email confirmation.
Appreciate your patience.

Hello A.r. Lamberts.
We'd be glad to clarify this.
It looks like you have two AVG accounts under different email addresses.
You used the alternate email address to submit the refund request, which is the reason our refund team could not find your account details.
Now that you shared the requested details, our refund team will initiate the refund at the earliest possible and send you an email confirmation.
Appreciate your patience.