I’m guessing from
A. Small charge (£5) when taking card out
B. When I went away I swapped over £1000 to the card to be spent while away so they had that in their account till I spent it ?
Other than that I never had any charges from them
The exchange rate was always the same as what it said on my phone
They claim bit to use funds like banks can and do, so having funds means having costs for them.
Full site isn’t different from mobile.
Well when the new phone is here ilk just start with the app and test it
You know when I can get gas for the car, pay toll on the road it is a good start but first will just do two identical buys at Amazon and AliExpress to see what the costs are compared to the Visa card.
If the sane or less, nice I can cut all other credit cards and use this Master debit, don’t like having to go trough , don’t want any 
They can make money on the exchange rate by selling dollars at a small profit.
I have checked out the Visa and Revolution cards, not available to be ordered from South Africa.
Is there a globally available version of a debit card anyone knows of?