When Dmitry Argarkov was sent a letter offering him a credit card, he found the rates not to his liking.
Mr Argarkov's version of the contract contained a 0pc interest rate, no fees and no credit limit. Every time the bank failed to comply with the rules, he would fine them 3m rubles (£58,716). If Tinkoff tried to cancel the contract, it would have to pay him 6m rubles.
Tinkoff apparently failed to read the amendments, signed the contract and sent Mr Argakov a credit card.
"The Bank confirmed its agreement to the client's terms and sent him a credit card and a copy of the approved application form," his lawyer Dmitry Mikhalevich told Kommersant. "The opened credit line was unlimited. He could afford to buy an island somewhere in Malaysia, and the bank would have to pay for it by law."
However, Tinkoff attempted to close the account due to overdue payments. It sued Mr Argakov for 45,000 rubles for fees and charges that were not in his altered version of the contract.