c) Sums written off in the Cheque Service on account of a purchase of State-bonds made for a participant, finally;
d) Every entry of fees, commissions, etc. in favour of the Post Office Savings Bank.
§ 11.
The Post Office Savings Bank will keep for three years the accounts, documents and writings in the Orders' (Cheque and Clearing) Service relating to business concluded; it can only therefore give consideration to claims with reference to payments in, assignments, payments back, interest and fees, etc., when they come within this period.
To claims which refer to a Post Office missive (Paying in Order, Post Office Order, Registered Letter and the like) the Post Office regulations as to the time in which such claims can be made will apply.
§ 12.
The foregoing regulations §§ 5 to 11 apply from the time this ordinance comes into operation, and will also apply from the same time to all deposits already made in the Orders' (Cheque and Clearing) Service, (§ 11 of the Law).
§ 13.
The Officials of the Post Office Savings Bank and of the Receiving Offices are bound by duty to keep the business and official secrets, and not to give to any third person, except their superiors, any kind of information whatever with reference to the name of a depositor, to the sums paid in or paid back, or to the amount of the balance in hand.