Our terms for all repairs are as for spares (see spares lists) and carriage and packing is charged extra in all cases. Packing cases (when invoiced) will be credited if returned in good conditions within seven days from date of despatch of goods. Parts removed and replaced with new ones will be disposed of at once unless instructions are received for their return at the same time as order. In cases where Estimates are submitted the old parts will be disposed of on acceptance of Estimate unless instructions are received otherwise. In cases of urgency parts may be sent per Railway C.O.D. system* at our discretion if instructions to the contrary are not received.