Unknown debet of my card from AVG

My card account has been debeted by AVG and I was not able to find out what was it for as I have not been registered at AVG site, did not have any credentials to check, your software is not at my computer installed. And I don't want to use AVG, I use another antivirus soft. I tried to get a refund, but as soon as I can not identify all the features and indexes  of the purchase I can not fill in the refund form fully. Please, advise. 

Hi Anatoliy,

We will help you to clarify the charge.

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