We were using this card on our trip to UK and for some reason they maintained my base currency as USD though amount is loaded in GBP. Though they say that charge for ATM transaction is nominal, for a specific ATM transaction for 500GBP they charged me 34GBP. The rational by call centre guy was that they convert my 500 GBP to USD first and then they convert it back to USD hence charging 17GBP per conversion!
Their service over phone/ email is equally bad and I would not recommend this product to anyone. Please stay away from this scam. Request corporates to stay away from this.