re payments - they've moved on from bank accounts
They usually insist on payment in the UK through a system called UKash.
Its a token system linked to mobile phone payments. Once the Indians have falsely identified problems with the machine, then you go round to the local corner shop and pay them cash, they enter it into the UKash system via their payment terminals (the ones used for paying utility bills, mobile phones etc) and they give you a printout with an ID number. The Indians phone back and take the number (at that point the cash is lost - irretrievable) and then pretend to fix the machine. Sometimes they'll install A/V software on the machine (often AVG free). In some cases I've known them send the customer to the corner shop two or three times - first to pay for the "work", and then again to pay for some "essential" cleanup software
Details of UKash
Easy, safe and private online payments for everyone. - Ukash