Depending on your credit and your countries rules, will determine the payment rules.
Credit is available in some countries.
Other forms of payments are also available.
30% deposit, balance at time of shipping
PIA – Payment in advance
Letter of credit – A documentary credit confirmed by a bank, often used for export
Bill of exchange – A promise to pay at a later date, usually supported by a bank
CND – Cash next delivery
CBS – Cash before shipment
CIA – Cash in advance
CWO – Cash with order
Stage payment – Payment of agreed amounts at stage