In case Buyer overpasses the 10 days limit period, Seller has the right to consider it as a new nomination and start counting a new preadvice. In case of ETA update of substituted vessel, the range between the ETA informed at the substitution notice and the updated one must be within 5 days. In case Buyer overpasses the 5 days limit period, Seller has the right to consider it as a new nomination and start counting a new preadvice. Nomination of vessel is irrevocable unless Buyer can prove "force majeure" or Seller agrees to the substitution or all the following conditions are fulfilled: