Russia apparently cannot compensate for the departure of Visa and Mastercard by switching to the Chinese credit card UnionPay.
Foreign internet shops have blocked payments for all cards issued in Russia, including UnionPay, Kommersant daily reports on Wednesday.
After the shutdown of Visa and Mastercard in Russia, many citizens had hoped to be able to pay with cards from Chinese banks.
According to the paper, there are 500,000 UnionPay credit cards across Russia.
The number has increased tenfold within a month.
Most of these cards are virtual and intended for purchase in Internet shops.
But there are problems with this because most international online retailers and their banks generally no longer accept cards issued in Russia.
In theory, UnionPay could fix the situation, according to the newspaper report.
But the Chinese credit card organization has so far not made any efforts to do so, it said.
After the Russian invasion of Ukraine, the West imposed sanctions in the financial sector, among other things.
Many financial institutions have been excluded from the banking communications network Swift.
The world's largest credit card operators Visa and Mastercard suspended their business in Russia.
Cards issued in Russia have not been accepted abroad since March 10.
Foreign Visa and Mastercard cards no longer work in Russia.
The Moscow leadership then promised a quick replacement with its own credit card system called "Mir" and the switch to UnionPay cards.