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Financial transaction cancellation is the cancellation of payment (by a bankcard) operation that was authorized, and the appropriate financial transaction was performed. The operation of financial transaction cancellation implies a full refund, taking into account the possible performs of the currency differences on the date of payment and on date of financial transaction cancellation.
The procedures for cancellation and refund in Personal account are described in Personal account operation instructions.
You can also make a cancellation or refund using Web service. For this, send HTTP POST or SOAP request (in UTF-8 coding) to IPS Assist server.