A personal Receipt Number (0000-0000-0000-0000) will be issued by Paypal for future reference.
The last 4 numbers will be your OESO ID Number.
You will need to use this number to benefit from the advantages provided by OESO to its members.
Pay your dues today,
and benefit as of now of the advantages of your membership.
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Annual OESO Membership: EURO 200
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