BA double charged me

BA continues to financially affect customers paying for family trips using a credit card. An uncleared hold is placed on the VISA card for the total and the individual tickets booked through, this leaves the account overdrawn and us unable to pay for accommodation, food and other day to day requirements.

This is not the only example, try google 'British Airways double charged me' to see countless examples where BA simply continues their behaviour.

Surely VISA have the power to get BA to alter their processes? They should request individual authorisations for the individual transactions to avoid this!