A clearing agent at the Busia border said the increment in tax makes it very expensive for importers.
The government has since warned that it will deal with illegal money changers as it seeks to protect the new currency.
UAE witnessed a record rainfall with authorities urging passengers to stay away from the airport.
China, now Zimbabwe's largest non-Paris Club creditor, says it is ready to help the country resolve its debt quagmire.
Kenya operates a floating exchange rate regime. This means that the value of the shilling is determined by market demand and supply.