PayFast *******ly storing card information

I have just used a new card to pay 1-Grid using Payfast. Payfast just stored my card details without me agreeing to it and 1-Grid keeps debiting my card which I just used for once off payment. This is wrong and *******, card information is confidential. Anyone can just store your card information as they please using PayFast and debit whatever amount whenever they feel like without you authorising it.